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HomeMy WebLinkAbout501 - Specifications 50 51 52 & 64ti ' v r RESOLUTION N0. 0-49 Z. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF NEWPORT BEACH ADOPTING STANDARD SPECIFICATIONS NO. 50 FOR GENERAL REQUIRE- MENTS, STANDARD SPECIFICATIONS NO. 51 FOR CEMENT CONCRETE MATERIALS AND REINFORCING STEEL, STANDARD SPECIFICATIONS NO. 52 FOR CEMENT CONCRETE SIDEWALKS ..CURBS:_AND., GUTTERS, AND STANDARD SPECIFICATIONS N0. 64 FOR THE CONSTRUCTION OF REINFORCED CEMENT CONCRETE RETAINING WALL, PRECAST TYPE, WITHIN SAID CITY. BE IT RESOLVED by the City Council of the City of Newport Beach that the following specifications to be known as Standard Specifications No. 50 for General Requirements, Standard Specifica- tions No. 5,1, for Oement Concrete Materials and Reinforcing Steel, Standard Specifications No. 52, for Cement Concrete Sidewalk, Curbs and Gutters, and Standard Specifications No.64for the construction of Reinforced Cement Concrete Retaining Beall, Precast Type within the City of Newport Beach, be and the same are hereby adopted. (1) C CITY OF NEWPORT BEACH CALIFORNIA STANDARD SPECIFIC_ITIONS NO. 50, FOR GENERAL REQUIREMENTS. Page a SECTION 1. WORK AND PLANS ............................ 1 SECTION 2? EXAMINATION OF GROUND ..................... 1 SECTION 3. SUITABLE APPLIANCES ....................... 1 SECTION4. SETTING STA KES ............................. 1 SECTION 5. INSPECTORS . ............................... 1 SECTION 6. M41TERI.LLS A141) S21MPLES ..................... 1 SECTION% L. IBOR ...... ............................... 2 SECTION 8. PRESERVATION -OF MONUMENTS.... .............. 2 SECTION 9. REMOVING OBSTRUCTIONS ..................... 2 SECTION 10. HEZ, DENS .... ............................... 2 SECTION 11. OBSERVING CITY ORDIw:NCES ................. 2 SECTION12. CROSS STREETS ........................:.... 2 SECTION 13. BARRIERS, LIGHTS, TEMPORARY BRIDGES, ETC.,. 2 SECTION 14. PUBLIC UTILITIES ........................... 2 SECTION 15. NOTICE TO CONTRA,CTOR ..... ii` ........1:.... 3 SECTION 16. DEFECTIVE WORK....... ..... ........... 3 SECTION 17. LOSS M Dia dAGE ............................. 3 SECTION 18. VARIANCE OF QUANTITIES .................... 3 SECTION 19. RESTORATION OF STREETS :CND SIDEWALKS...... 3 SECTION 20. PROTECTION OF WORK 2iND CLEANING UP........ 3 SECTION 21. ALLOW;IBLE V. IRIATION ....................... 3 SECTION 22. FINAL INSPECTION ........... .. .............. 3 SECTION 23. FEES AND ROYALTIES 4 ......... ... .f. ... SECTION24. DEFINITIONS,........., ...................... 4 C CITY OF NTH ORT BEACH CALIFORNIA STANDARD SPECIFICATIONS SO. 50. FOR GENERAL REQUIRTMENTS M. SUCTION 1. 'NORk AND PLANS: The Contractor shall for the price bid furnish all labor inaterials and eauipment necessary to execute the work in every respect in a thorough workmanlike manner in accordance with the plans profiles and specifications and to the satisfaction of the Su erintendent of Streets. All work shall during its progress and to its completion conform to the lines elevations and grades shown on said plans and pro- files. A copy ef•the plans and specifications furnished by the City Engineer shall be kept upon the work at all times during its progress and access ther -to shall at all times be accorded the City Engineer or the Superintendent of Streets. SECTION 2. ?XA +_IN >TION 011— a*6t3- : Bidders must examine and judge for themselves as to the location of the proDosed work the nature of the excavation to be made and the work to be done. The plans for the work will show conditions as.they are supposed or believed by the City Engineer to exist but it is neither intended nor to be inferred that the conditions'as shown thereon constitute a representation by the city or its officers that such conditions are actually existent nor shall the city or any of its offices be liable for any loss sustained by the Contractor as a result of any variance between conditions as shown on the plans.and the ac- tual conditions revealed during the progress of the wort or other- wise. SUCTION 3. SUITABL3 APrLIAN = : The Contractor shall use s�,ch methods and appliances for the performance of the work embraced under these specifications as will secure a satisfactory euality of work and rate of progress. SECTION 4. STTTINa STARS: The Contractor shall give twenty -four 24 hours notice in writing, when he will reauiie the service of the City Engineer for layinG out any portion of the work. The Contractor shall dig all holes necessary for line and.-rade stakes and shall preserve all stakes set for line grades or measurements of the work in their proper places until authorized to remove them by the City Engineer. Any expense incurred in replacing said stakes which the Contractor may have failed to preserve shall be borne by the Contractor.; SECTION 5. INSP7CTO ::S: The Contractor shall prosecute the work only in the presence of an inspector authorized by the Super- intendent of Streets and any work done in the absence of said inspector shall be subject to rejection. The Contractor shall furnish the inspector the City Engineer and the Superintendent of Streets Peasonable'facilities for obtaining full information respecting the progress and manner of the work and character of the materials. SECTION 6. MATT'nIALS AN7 SAMPL?S: All materials must be of specified quality and fully equal to samples where samples are required. The Contractor shall furnish to the City Engineer for test whenevei requested and free of charge samples of all materials pro;�osed to be used in the work. Rejected material must be immediately removed from the work by the Contractor and shall not be brought again upon the work. -1- E SECTION 7: LABOR: person employed on to perform th-- work charged immediately the work: Amy superintendent, foreman, laborer or other the work by the Contractor, who fails or rofuses in the manner specified herein, shall bo lis- and such person shall not again be employed on SECTION 8: PRESERVATION OF wiONUMNTS: The Contractor shall not lis- turb any monuments or stakes found on the line of the improvements without permission from the City Engineer, and he shall bear the expense of resetting any monuments or stakes which may be .disturbed without permission SECTION 9: REis:OVING OBSTRUCTIONS: The Contractor shall remove trees whore required by the plans of or where the proper completion of the work requires their removal. The Contractor shall also remove all stone, debris or other obstructions, of whatever kind or char - actur, encounturel in making the improvements. SECTION 10: HEADERS: Whenever thopavomont to be laic does not terminate against a curb, gutter or other pavement, the Contractor shall provide and sot upon the line of termination a healer of sound plank, two (2) inches in thickness ani of a width not less than the thickness of the pavement. Tho top edge of the plank shall conform to the cross — section of the finished street. Sail healers shall bu consiierei a nocessary part of the pavement ani shall renain in place +,ahem the work is completed and accepted. SECTION 11: OBSERVING CITY ORDIXLiNOES: The Contractor shall observe all the ordinances of the City of Ne;aoort Beach in relation to the obstruction of streets, keeping open passageways and protecting the same where they are exposed and would be dangerous to travel. SECTION 12. CROSS STREETS: No two consecutive cross streets shall be closed at any one time. SECTION 13: BARRIERS, LIGHTS, TE-MPORARY BRIDGES, ETC.: The Contractor shall erect and keep erected, by night aid da;, a fence or proper barrier along the line of the work ani across the ends of the same in order to guard the public effectively from danger of falling into trenches or from upsetting their vehicles against the earth thrown up during the progress of the work, ani he shall post all proper notices ani signals to the public of the state of the streets while the work is in progress. A red limit must be maintained at night at each and of the barrier from sunset until sunrise. He shall provide and maiii,tain all necessary detours ani temporary bridges. SECTION 14: PUBLIC UTILITIES: In case it should.be necessary to move the property of any owner of a public utility or franchise, such owner will, upon proper application by the Contractor, be notified by the Suporintendent of Streets to move such property within a specified reasonable timo, and the Contractor shall not interfere with sail property until after the expiration of the time specified. The right is reserved to the owners of public utilities and franchises to enter upon the street for the purpose of making repairs or changes of their property made necessary by the work. The City of Newport Beach shall also have the privilege of entering upon the stroot for the purpose of repairing sewers, and water pipes, or making house connections therewi.th,.or repairing culverts or storm drains. W41 SECTION 15: NOME-70 CONTRACTOR: .Notiao of any imperfections in the work to any foreman or agent in charge of any portion of the work, in the absence of the Contractor, shall be considered as notice to the Contractor. SECTION 16:.3)EFECTIVE WORK:. No work which is defective in its construction.or deficient.in any of the requirements of these specifications will be considered as accepted in consequence of the failure of any officer of the city or inspector.connected with the work, to point out said defects or deficiency during construction. The Contractor shall correct any imperfect work, whenever discovered, before the final acceptance of the work. SECTION 17: LOSS OR DAMAGE: All loss or damage arising from any unforseen obstruction or difficulties which may be encountered, in the prosecution of the work or from any action of the elements prior to the acceptance of the work,.or from any act or omission not authorized by these specifications, on the part of the Con —. tractor or any agent or person employed by him, shall be sustained by the Contractor. SECTION 18: VARIANCE OF QUANTITIES; The Contractor assumes all risk of variance in any computation or statement of amounts of quantities necessary to complete the work required by the contract and agrees to furnish all necessary labor and.materials to fully. complete said work in accordance with.the plans and specifications and to the satisfaction of the Superintendent of Streets.. SECTION 19: RESVORATION OF STREETS AND SIDEWALKS. Where trenches are excavated in .streets which.are paved, macadamized, oiled or otherwise improved, the pavement or surface thus removed shall be replaced by ,the '.Contractor ,t.n a.workmanlikg _mannerY and in ae- cord'a4ce with' the.speeifiaations under which the street wise originally improved. Unless otherwise provided; the Contractor shall re- place and repair any damage to sidewalks, cross — walks, curbs and gutters resulting from trench excavation prior to the acceptance of the work. SECTION 20: PROTECTION OF WORK AND CLEANING UP: The Contractor shall care for all work until final completion and acceptance of the whole. All damage done to existing improvements by the Con- tractor shall be repaired by him. He shall remove all..surplus material and rubbish from the work after it6 completion and be- fore he makes application for the acceptance of the work. SECTION 21: ALLOWABLE VARIATION: When, in these specifications, a maximum.of: minimum, either in size, percentage or thickness,. or relating to quality or character or other matter, is.allowed or proscribed, the work shall be accepted as in compliance there- with if within such maximum or minimum so allowed. SECTION 22: FINAL INSPECTION;. The Contractor shall.notify the Superintendent of Streets when he desires a final inspection of the work. The Superintendent of Streets will as soon thopeaftec as possible make the necessary examination.. If the work is found to be in compliance with these.specifications, the Superintendent of Streets will furnish the Contractor with a certificate to that effect. —3— 7_ S. 1. SECTION 23: FEES AliD ROYALTIES. All fees or royalties for any patented invention, article or arrangement in any manner coiinected with the work, or with triese specifications, shall be included in the price stated in the proposal, and the Contractor shall protect and hold the City harmless against any and all demands or claims for such fees or royalties, whether such demands or claimsare filod luring the life of the contract or after its completion. SEC-�ION 24: DEFINITIONS. Whenever the word "City" is used in the specifications, it refers to the Cite of Newport Beach, California. Whanav„r the word "Contractor" is used in the specifi- cations, it refers to the party or parties of the Seconi part in the agreement for the construction of the work herein specified. Whonevor the worts "Superintendent of Streets" and "City Engineer" are used in the specifications, they refer, respectively, to the Superintendent of Streets and the City En- gineer of the City of Newport Beach, California, or their authorized agents or inspectors. "4— CI't'. C.1 11.1;i,! Do T b iCiF CA "-!.'YCRtjTA STAPill..RD ;i?ECIF'CsnTIONS NO. 51- PGR CE'dEFT CONCRETE LATERIALS AND REIIr ORCING STEEL, i PAG.t SECTION 1. PORTLAND CEMENT ................:........ 1 & 2: SECTION 2. SA ND ..... ............................... 2, SECTION 3. ROCK :.... ............................... 3. SECTION 4. PEA GRiiVEL FOR CONCRETE .......... :...... 31 SECTION 5. MHOD OF DETERivM ING FINENESS MODULUS— 3i SECTION 6. RATTLER TEST ............ 6 ............... 3 & 4. SEC'TTIOii 7. WATER .... ............................... 4. SECTIM4 S. JOINT FILLER ........................... 4. SECTION 9. REINFORCING STEEL ......................... 4. SF,CT'ION 10. STORING i4 TERIALS••••..•..• ............. 4. i CITY OF NEWPORT AACH CALIFORNIA STANDARD SPECIFICATIONS NO. 51. M FOR CEMENT CONCRETE YMEnIALS AND REINFORCING STEEL SECTION 1. PORTLAND CEMIENT: 1( (a) All cement used shall be Portland Cement and must conform to the following requirements and be subject to the follow- ing test which will be open to the Contractor. Samples for test may be taken from every package delivered or proposed to be used upon the work, and unless they meet the requirements herein speci- fied, such packa -e or packages of cement will be rejected. All cement shall be true Portland Cement. No cement will be accepted, tested or permitted to be used unless delivered in the original unopened, packages, filled at the cement mill and with the manufacturer's name and the brand of the cement plainly marked thereon. If delivered in sacks, each sack must contain not less than ninety -four (94) pounds net of cement. Such sacks of cement rust be uniform in weight and the sacks shall be whole and untorn. If delivered in wooden or metal barrels, the content must be three hundred and seventy -six (376) pounds net of cement. The cement must be dry and free from lumps. No cement shall be used which has been mixed in any way with any other brand or quality of cement o: which has been tam- pered with in any way after having been placed in the original package of the manufacture:, not shall any cement be used from reground. To prevent sifting or loss of weight, and for pro- tection from moisture, all cement that has been trans-oorted by water must be in paper lined cloth sacks, or in barreis made of wood or metal. The :paper liners used inside the sacks :must be stout and damp - proof, and may be either open mouthod or of the sealed type with valves for filling. All cement shall meet the specifications and be tested in accordance with "Standard Specifications and Tests for Port- land Cement ", Serial Designation C9 -26, adopted and revised by the American Society for Testing Kateria.l and on file in the office of the City Clerk of the City of Newport Beach, and when tested as above shall meet the :Following requirements. (b) FINENESS: The residue on a 200 -mesh screen shall not exceed twenty -two (22) per cen'. by weight. (c) SOUNDNESS: A pat of cement paste about three (3) inches in diameter and one -half (1) inch in thickness at the center, tapering to a thin edge, stored in moist air for twenty- , four (24) hours, and then kept in an atmosphere of steam at ninety -eight (99) to one-hundred (100) degrees Centigrade, for five (5) hours, shall show no signs of distortion, cracking, check- ing or disintegration. (d) TIME OF SETTING: The cement shall not develop initial set in less than forty -five (45) minutes when tested with a Vicat needle, nor in less than sixty (60) minutes when tested with a Gilmore needle. Final set shall be attained within ten (10) hours. (e) TENSILE STRENGTH: The average tensile strength in pounds per square inch of not loss than three (3) mortar briquettes, composed of one (1) part, by weight, of cement and three 3) parts, -1- Jr by woight, of standard Ottnava sand, shall not be loss than the following: :m at Test Storage of Briguot•tos Pounds per Sq. In. 7 days. 1 day in moist air, 6 days in water. 225 28 days. 1 day in moist air, 27 days in water. 325 When the cement is of a brand not previously tcsted or where previous tests have fallen below the requirements herein set forth, such cement shall be hold in storage until the 29 days test can be completed. 'Mork in which cement has been used which subsequent test show to be not in conformity with the require- ments herein set forth, shall be reconstructed. Cement sizall be received on the job in sacks filled at the cement factory and each containing not less than ninety - four (94) pounds net weight of cement. C SECTION 2. SAND: Sand shall be a natural sand having clean, hard, durable, uncoated grains, and shall be free from shale, oil, organic matter, alkali, or other deleterious substances. Sand shall be thoroughly and uniformly washed. Sand must not contain more than three (3) per cent. by weight, of clay or silt and shall not con- tain more than three (3) per cent., by weight, of mica. Sand must have a fineness modulus of not less than 2.50 nor more than 3.20 when determined as hereinafter specified, and shall meet the following requirements as to size: Passing 1/4 inch screen .......... 95 to 100%. Passing 30 mesh screen ........... 15 to 300. Passing 100 mesh screen .......... 0 to 6 %. Screens to have square openings and percentages are by weight of dry material. Sand shall be tested for organic matter in the follow- ing manner: A 12 -ounce graduated prescription bottle is filled to the 4+ -ounce mark with the sand to be tested: then there is poured into the bottle a three (3) per cent. solution of Sodium Hydrox- ide until the volume of sand and solution, after shaking amounts to seven ounces. The bottle is then shaken thoroughly and allowed to stand for twelve (12) hours. If at the end of this time the liquid above the sand is darker than a light yellow color, the sand will not be permitted to be used in the concrete. An average of three (3) briquettes, one (1) inch square in cross - section, made of one (1) part Portland Cement, conforming to the specifications and three (3).parts of sand, shall attain a minimum tensile strength in seven (7) days equal to ninety (90) per cent. of the average tensile strength of three (3) like briquettes of the same proportions, made with the same cement and Standard Ottawa sand. SAND TO BE USED FOR CEMENT MORTAR FINISH: Not more than six (6) per cent. minus the per cent. of silt, loam, clay, etc. determined by test for Organic Impurities shall pass a No. 100 sieve. Not less than seventeen (17) per cent. and not more than forty -two (42) per cent. shall pass a No. 30 sieve. All shell pass a No. 4 sieve. -2- SECTION 3. ROCK: Rock shall consist of sound crushed rock or washed gravel, or a combination of both. It shall be free from dirt, mud, stone, dust, organic matter, oil, or other deleterious substances. It shall contain no soft, flat, or elongated pieces. Rock shall be sound, clean, hard, tough, durable material and shall not contn.in more than one (1) per cent. by weight, of clay or silt. Rock shall be uniformly graded between the maximum and minimum sizes specified. Yet more than two (2) per cent. by weight of the rock shall have a maximum dimension, more than fifty (50) per cent. greater than the largest screen size specified therefor and shall have a specific gravity of not less than 2.60 nor more than 2.70. SECTION 4. PEA GRAVEL FOR CONCRETE: Pea gravel shall be sound, washed gravel, clean, hard., tough, durable material free from vegetable or other deleterious substances. It shall be free from dirt, mud or stone dust. Pea gravel as furnished shall be uniformly graded fro.n the largest to the smallest screen or sieve sizes given below, and in addition shall conform to the following screen tests: openings. (a-) All ehall pass a screen having � in. square . (b) Not less than 95 per cent by weight, shall pass a screen having 3/9 inch square openings. (c) Not less than 40 per cent and not more than 60 per cent by weight, shall be retained on a 4 -mesh sieve having square openings. (d) Not more than 10 per cent, by weight, shall pass a 14 -mesh sieve with square openings. Pea gravel shall not show a loss of more than thirty - two (32) per cent. when subjected to the rattler test hereinafter specified. SECTION 5. MET 22 OF DETERMINING FINENESS MODULUS: The fineness Itodulus of the sand or rock shall be determined by a, sieve anal- ysis, using the following sizes of standard sieves: 100 mesh, 49 mesh 2 mesh, 14 mesh, 9 mesh, 4 mesh, 3/8 inch mesh, 3/4 inch, and 12 inch mesh, screens to have square openings. The sum of the percentages, byveight, of the material retained on each of the above standard size sieves divided by 100 is the fineness modulus of the material. SECTION 6. RATTLER TEST: At least thirty (30) pounds of the mater- ial to be tested shall be available for the test. Each sample when ready for the rattler shall consist, of five (5) kilograms ' (eleven pounds)of said dry material; all shall pass a 2 -inch screen, sixty (60) per cent. by weight shall be retained on a. 3/4- inch screen, and all shall be retained on a 1-inch screen. The said sample shall be tested in a rattler, consisting:of a metal cylinder twenty -eight (28) inches in diameter, and twenty (20) inches in length, longitudinally mounted on a horizontal shaft and having a shelf four (4) inches wide extending from end to end. During the test the rattles shall be revolved at a rate of between twenty -eight (29) and thirty (30) revolutions per minute. A charge for the rattler shall consist of the said five (5) kilo- gram sample and fourteen (14) cubical blocks of cast iron measur- ing about one and one -half (11) inches in each dimension, and having a weight of five (5) kilograms. After receiving the charge the rattler shall be given five hundred (500) revolutions. The -3- J t @ sample shall then be screened and the portion by weight which will pass a 10 -mesh screen shall be considered and designated as the loss. SECTION 7. WATER: Water shall be clean, free from oil, acid, alkali or vegetable matter.. If the Contractor elects to use city water, arrangements must be made with the Water Superinten- dent. SECTION a. JOINT FILLER: The filler for all expansion and contraction joints shall consist of composition board made of two layers of paper or felt and a filler of asphalt or composition board made of fibre permeated with asphalt. The thickness of the composition board shall be as hereinafter specified or as'shown on plans. The quality of the asphalt shall be such that it will not become soft in warm weather or brittle in cold weather: When it is necessary to splice the joint filler it shall be laced or clipped together in a workmanlike and effective manner. When in storage on the work, all joint material shall be laid flat on plank. SECTION g. REINFORCING STEEL: Steel shall be made by the open hearth process and shall be of uniform quality: It shall contain not more than five- hundredths (.05) per cent.sulphur; if made by the acid process it shall contain not more than six - hundredths (.06) per cent. phosphorus, and if made by the basic process not more than four - hundredths (.04) per cent. phosphorus. When tested in specimens of standard forth, or full sized pieces of the same length, it shall have.an ultimate tensile strength of fifty -five thousand (55,000) to seventy thousand (70,000) pounds per square inch; an elastic limit of not less than one -half (2) the ultimate strength, and a minimum percentage of elongation in eight (i inches of one million, two hundred and fifty thousand (1,250,000) divided by the ultimate strength. Test specimens shall bend cold through one hundred and eighty (180) degrees around a pin without cracking on the outside of the bent portion, the diameter of the pin being equal to the thickness of the specimen if less than three- quarter (3/4) inch, and being twice the thickness of the specimen if three- quarter (3/4) inch or larger. Reinforcing bare Shall be free from flaws, cracks, mill scale, oil or paint. All reinforcing bars shall be square deformed bars unless otherwise specified. SECTION 10. STORING MATERIALS: When cernent is stored on the work it shall be suitably protected at all times from exposure to moisture until used. Sand and rock shall not be stored on the subgrade. -4- r - r CITY OF NV PORT BEACH CALIFORNIA STANDARD SPECIFICATIONS NO. 52. CEUZIT CONCRETE SIDETAL3S, CURBS AAD GUTTERS. Page SECTION I. PLANS ... ............................... 1 SECTIOA 2. WORK ................................... 1 SECTION 3. GENERAL REQUIRZkSNTS .................. 1 SECTION GRADING . ............................... I (a GRADING AREA 1 ( b SUBGR �iDE .. ...................... (c FILLS 1 2 ............................. SECTION 5• FORMS ... ............................... 2 SECTION 6. CEMENT CONCRETE ........................ � MATE RIALS......................... 2 b PROPORTIONING MATERIALS........... jai 2A c) MIXING QD MEASURING .............. 3 (d PLAC0G 07 CONCRETE ............... 4 SECTION 7. JOINT FIL1 3R ........ . ....... ...I....... 4 SECTION 8. CONCRETE CURB .......................... 4 DIMENSIONSw 4 b)) FORMS. jai ......................• 5 c PLASTERING AND FINISHING.. 5 d. EXQNSION JOINTS .................. 5 e PROTECTION AND CURING ............. 5 SECTION 9. UNPLASTERED CURB ....................... 5 SECTION 10. CONCRETE GUTTER AND CROSS- GUTTER...... 6 DIMENSIONS ........................ 6 b FORMS 6 ............................. lal c FINISHING ......................... 6 d EXPANSION JOINTS. ..... ...... 6 (e PROTECTION AND CURING.... ........ 6 SECTION 11. COMBINATION CONCRETE CURB AND GUTTER, 7 SECAON 12. TWO COURSE SIDE;7ALK ................... 7 DIMES .IONS 7 b FORMS . ....................... 7 c PLACING CEMENT MORTAR............ jal 7 d EXPANSION JOINTS ................. 8 a PROTECTION AND CURING............ 8 SECTION 13. COLOR COAT FINISH OF SIDEWALK......... 9 SECTION 14. CONTRACTOR'S NAME ON WORK ............. 9 40 a J i w w CITY Or NEWPORT BLnCH ALIFOR:IA STANDARL SMICI:ICATIONS NO. 52. CEJiINT CONCRET SIDETALTS CURBS AND GU ERS. M C'' OA' 1. PLAYS: The detailed location of the work to be done, together with grades cros sections and special construction is illustrated on the maps profiles cross- sections and plans adopted therefor by the City Council' and on file in the office of the City Engineer. These maps pans profiles and cross- sections are to be considered a part of these specifications, and any notations appearing thereon shall be considered as though incorporated as a part of these specifications. All dis- tances and measurements given are in a horizontal plane. All work shall during its progress and on its completion conform to the lines and levels which may from time to time be given by the City Engineer. SECTION 2 WORK: The work to be done consists of the following: (a) Preparing the foundation for the sidewalk and gutter, and digging the trench for the curb. (b) Constructini, and laying the sidei --F, .lk curb and gutter dhown upon the plans drawinss and typical cross- sections, according to the followin; specifications. (c) Furnishing of material and labor necessary to per - form said work, and to complete sa.re. (d) Reroving from the street and sidewalk adjacent to the work, all surplus material or debris. SrCTIOiv Z. u'NTLRAL RT UIF.E� 3NTS: The general requirements shall conform to Standard Specifications No. 50 for "General Require- ments". SECTION 4. G3ADING: (a) G=.ADIDG AREA: The grading area for sidewal't, curb and gutter shall be as follows: FOR CURB AND GUTT'R: Such portion of the street shall be graded as is necessary to provide a foundation for the proposed construction and to enable the work to be' properly finished. When sidewalks are not to be constructed the remain- ing area between the curb line and the property line shall be graded on a slope up from the curb at a rate of one - quarter (-i) inch per foot. TOR SID,WALKS: When sidewalks are to be constructed, the area to be occupied by the sidewalk shall be brought to subgrade and unless otherwise specified the ramaining area between the curb lines anti. property line's shall be graded even with the surface of the sidewalk. (b) SUBGRAM : The foundation upon which the sidewalk, curb and gutter is to rest shall be brought to the required grade and cross- section and shall be thoroughly tamped and rolled until solid. If'the subgrade consists of sand the rolling thereof will not be required, but it shall be compacted by wetting down_ thoroughly and smoothed to conform to grade and cross- section. Whenever soft or spongy material is encountered in making the sub - g.ade such material shall be remove; to a depth of at least six (6) inches below subgrade and filled with good sound earth or sand, which shall be thoroughly tamped and rolled, as above speci- f ied. -1- _4 ! c J o CITY Or NEWPORT BLnCH ALIFOR:IA STANDARL SMICI:ICATIONS NO. 52. CEJiINT CONCRET SIDETALTS CURBS AND GU ERS. M C'' OA' 1. PLAYS: The detailed location of the work to be done, together with grades cros sections and special construction is illustrated on the maps profiles cross- sections and plans adopted therefor by the City Council' and on file in the office of the City Engineer. These maps pans profiles and cross- sections are to be considered a part of these specifications, and any notations appearing thereon shall be considered as though incorporated as a part of these specifications. All dis- tances and measurements given are in a horizontal plane. All work shall during its progress and on its completion conform to the lines and levels which may from time to time be given by the City Engineer. SECTION 2 WORK: The work to be done consists of the following: (a) Preparing the foundation for the sidewalk and gutter, and digging the trench for the curb. (b) Constructini, and laying the sidei --F, .lk curb and gutter dhown upon the plans drawinss and typical cross- sections, according to the followin; specifications. (c) Furnishing of material and labor necessary to per - form said work, and to complete sa.re. (d) Reroving from the street and sidewalk adjacent to the work, all surplus material or debris. SrCTIOiv Z. u'NTLRAL RT UIF.E� 3NTS: The general requirements shall conform to Standard Specifications No. 50 for "General Require- ments". SECTION 4. G3ADING: (a) G=.ADIDG AREA: The grading area for sidewal't, curb and gutter shall be as follows: FOR CURB AND GUTT'R: Such portion of the street shall be graded as is necessary to provide a foundation for the proposed construction and to enable the work to be' properly finished. When sidewalks are not to be constructed the remain- ing area between the curb line and the property line shall be graded on a slope up from the curb at a rate of one - quarter (-i) inch per foot. TOR SID,WALKS: When sidewalks are to be constructed, the area to be occupied by the sidewalk shall be brought to subgrade and unless otherwise specified the ramaining area between the curb lines anti. property line's shall be graded even with the surface of the sidewalk. (b) SUBGRAM : The foundation upon which the sidewalk, curb and gutter is to rest shall be brought to the required grade and cross- section and shall be thoroughly tamped and rolled until solid. If'the subgrade consists of sand the rolling thereof will not be required, but it shall be compacted by wetting down_ thoroughly and smoothed to conform to grade and cross- section. Whenever soft or spongy material is encountered in making the sub - g.ade such material shall be remove; to a depth of at least six (6) inches below subgrade and filled with good sound earth or sand, which shall be thoroughly tamped and rolled, as above speci- f ied. -1- The subgrade shall be thoroughly drenched ,Pith water before any concrete is placed on the subgrade. (c) FILLS: Whenever sidewalk, curb or gutter is to be of constructed on a fill, said fill shall be built up of good ea.rth in layers not to exceed one (1) foot in thickness. Each layer shall be thoroughly dampened, tamped, and rolled until solid. SECTION 5. FORMS: FOR ALL WORK: Before placing forms the earth beneath them shall be excavated to the proper grade, and shall be hard and com- pact, Forms shall have full bearing upon the earth throughout their length. The top edges of all forms shall conform to the grades and cross - sections of the surface of the work. Side forms of timber or steel must be used. They shall be so supported during the entire operation of placing, tamping, and finishing the work that they will not at any time deviate laterally nor at any time deviate vertically more than one - quarter (3) inch from the proper line. When side forms are used more than once, only straight forms shall be used, and all warped forms and split timber forms -shall be discarded. Before being placed, all forms shall be thoroughly clean. Timber side forms shall be No. 1, common Oregon pine or white fir. They shall be not less than two (2) inches thick, and at least twelve (12) feet long, and their depth shall be at least equal to the specified depth of the edge of the work. They shall have square top edges, square butt joints, and shall not con- tain enough knots or other imperfections to impair their strength. They shall have no wane on the edge to be placed uppermost, and shall be straight. SECTION 6 CEMENT CONCRETE: (a) MATERIALS: Cement, sand, gravel and rock shall conform to Standard Specifications No. 51 for "Portland Cement ", "Sand," "Gravel" and "Rock" respectively. WATER: Water shall be clean, free from oil, acid, alkali or vegetable matter. GRADING OF RDCK: Rock shall be graded oe'cween the max- imum and the minimum sizes and must have a fineness modulus'of not less than 7.00 or more than $.00 when determined as hereinafter specified: The rock shall not show a loss of more than thirty (30) per cent when subjected to the rattler test as hereinafter specified and shall meet the following requirements alto size: Passing 13" screen ... ...... 9900 to 100 %. Passing 374" screen ........... 45Jo to 65 %. Passing 1/4" screen Op to 10;', Not more than two (2) per cent, by weight, of the rock shall have a maximum dimension more than fifty (50) per cent greater than the largest screen size specified for, and shall have a specific gravity of not less than 2.60 nor -more than 2.70. Screens to have square openings and percentages are by weight of dry material. Method of determining fineness modulus and rattler test shall be as specified in Standard Specifications No. 51. -2- v The subgrade shall be thoroughly drenched ,Pith water before any concrete is placed on the subgrade. (c) FILLS: Whenever sidewalk, curb or gutter is to be of constructed on a fill, said fill shall be built up of good ea.rth in layers not to exceed one (1) foot in thickness. Each layer shall be thoroughly dampened, tamped, and rolled until solid. SECTION 5. FORMS: FOR ALL WORK: Before placing forms the earth beneath them shall be excavated to the proper grade, and shall be hard and com- pact, Forms shall have full bearing upon the earth throughout their length. The top edges of all forms shall conform to the grades and cross - sections of the surface of the work. Side forms of timber or steel must be used. They shall be so supported during the entire operation of placing, tamping, and finishing the work that they will not at any time deviate laterally nor at any time deviate vertically more than one - quarter (3) inch from the proper line. When side forms are used more than once, only straight forms shall be used, and all warped forms and split timber forms -shall be discarded. Before being placed, all forms shall be thoroughly clean. Timber side forms shall be No. 1, common Oregon pine or white fir. They shall be not less than two (2) inches thick, and at least twelve (12) feet long, and their depth shall be at least equal to the specified depth of the edge of the work. They shall have square top edges, square butt joints, and shall not con- tain enough knots or other imperfections to impair their strength. They shall have no wane on the edge to be placed uppermost, and shall be straight. SECTION 6 CEMENT CONCRETE: (a) MATERIALS: Cement, sand, gravel and rock shall conform to Standard Specifications No. 51 for "Portland Cement ", "Sand," "Gravel" and "Rock" respectively. WATER: Water shall be clean, free from oil, acid, alkali or vegetable matter. GRADING OF RDCK: Rock shall be graded oe'cween the max- imum and the minimum sizes and must have a fineness modulus'of not less than 7.00 or more than $.00 when determined as hereinafter specified: The rock shall not show a loss of more than thirty (30) per cent when subjected to the rattler test as hereinafter specified and shall meet the following requirements alto size: Passing 13" screen ... ...... 9900 to 100 %. Passing 374" screen ........... 45Jo to 65 %. Passing 1/4" screen Op to 10;', Not more than two (2) per cent, by weight, of the rock shall have a maximum dimension more than fifty (50) per cent greater than the largest screen size specified for, and shall have a specific gravity of not less than 2.60 nor -more than 2.70. Screens to have square openings and percentages are by weight of dry material. Method of determining fineness modulus and rattler test shall be as specified in Standard Specifications No. 51. -2- At 1W (b) PROPORTIONING MATTRIALS: All cement concrete to be used in construction under these specifications shall be composed of materials as follows unless otherwise specified on the plans, to -grit: Should there not be enough laortar to completely fill the voids in the concreta, the deficiency shall be remedied by reducing the portion of rock used in the mixture and not by add- ing a greater portion of sand. The amount of wa.tei specified includes ti•ater already in the concrete materials; and in measuring wat. -r, allowance shall be made for water contained in said materials. -2A- If iieasured marts by Vol ^'Yaximum amount of^ tNork li'ortla.nd S nd;Rock & , water per sack of Cement �G.ravel j cement., in pounds..._ r Plastered 1 3 j 4 I 50 ,Curb Ilwo- course Sidewelk 1 3 1 4 ` 50 One- course sidewalk 1 2 3 50 1 2 3 50 (Unpla.stered.Curb Gutters ?. CToss- gutter s 1 2 j' 50 I Should there not be enough laortar to completely fill the voids in the concreta, the deficiency shall be remedied by reducing the portion of rock used in the mixture and not by add- ing a greater portion of sand. The amount of wa.tei specified includes ti•ater already in the concrete materials; and in measuring wat. -r, allowance shall be made for water contained in said materials. -2A- If F The cuantity of water used in addition to conform- ing to the above requirements shall be such that the slump shall not be less than eight (8) per cent, ncr more than twenty (20) per cent when subjected to tho clump tes-c. Tne slump test shall be made in the following imannar: The test con:; to be us °d in making the slump test thal ?. have an inside diameter of eight (8) inches at the base and an inside diameter of four (4) inches at the top, and a perpend- icular height of twelve (12) inches. Im«iodiately after the con - �rete has been mixed and deposited on the subgzade,'a sufficient r_•uantity thereof shall be placed in four layers in the tapered Lest cone until the concrete is flush with the top of the cone; each layer shall be thoroughly settled by working with a pointed iron rod. Then the test cone shall be lif:.ed, allowing the con- crete to settle or slump. After the pile of concrete has set one (1) minute, its height shall be measured and subtracted from the original height of twelve (12) inches, which difference in height Is the amount of the slump in inches. CEMENT MORTAR: The cement mortar to be used in finishing Class "A" and Class "B" curbs, and to be used for finishing sidewalks, shall be composed of the following materials* 1. Portl':+nd Cement 2. Sand ---- - - -- -- 1 part by volume. 1 parts by volume. A sufficient quantity of lamp black shall be mixed with the finishin coat to give it a dark slate color; not more than one-quarter 4) pound of lamp black shall be used to each sack of cement. ( c) FIXING AND EGEASURING: UEASLRING: All sand and rock shall be measured loose without shaking or eo.mpacting. For machine mixing, sand and rock shall be measured either at a central proportioning pant or in wheelbarrows on the work. Wheelbarrow a, if used for measuring sand and rock, shall be such that when struck with a straight edge or rodded off with a gauge resting upon the sides they shall have the capacity necessary to maintain the required proportions. For hand mixing, the sand and rock shall be measured ?.n boxes having a capacity necessary to maintain the proportions specified. Every wheelbarrow load or box full of material used nrast be struck with a straight edge or gauge as above specified. EGACnINZ 1 - =ING: The concrete shall be mixed with mechanical batc:n mixers cr_ly when concrete mixers are used. The water tank on the mixer shall be so arranged that the amount of water reouired for each batch of concrete can be positively and accurately measured and while the water tank is discharging, the inlet supply shall,. be automatically cut off. The drum of the mixer shall revolve at a rate of speed not to exceed the rated speed specified by the maker of the mixer, provided, however, that the (Irum chali make not less than ten (10) nor more than eighteen (18) evolutions per minute. Every batch of concrete shall be mixed in the d.rum of the mixer not less than Sixty (60) seconds before any portion of the batch is discharged from the said drum. The drum shall not be charged while mixer is discharging. w r a T _ The contractor shall mix it the mixer only such cuan- tity of material as will be withi- the. capacity of the mixer without spilling, based on the ree, cy le -rcl cepaoity of the drum, but in no case shall the amou -nt mixed exceed t}.e i.anufacturer'b catalog rated capacity. HAITI) Y1XING: Hand r::ix4_ng wi.11 only be allowed when the quantities of the work to be done are less than the following: Curb I.i.neal feet. Gutter - - - - - -- - - -- - - - -- - -.- 1�--0 souwre feet. Cross- Gutter --- - - - - -- - - -- 100 sjnare feet. Sidewalk -------------------- 250 square feet. In mixing concrete by hand, a tight, level platform shall be used on which the rock, sand and cerlent in the proportions stated herein shall be spread in layers rot over twelve (12) inches each in thickness, in the order named.. The batch shall then be turned with shovels at least three (3) times dry and two (2) times wet, shoveling from the bottom of the pile. Water shall be supplied in a spray during the wet turns. The inspector shall be given the opportunity to check the number of sacks of cement on each batch before the sacks are opened. No concrete shall be used which has partially set,and no concrete shall be retempered or remixed. (d) PLACING OF CONCP.ETE: All surfaces on or against which ocncrete is to be laid shall be thoroughly watered just previous to placing the concrete. Concrete, after the addition of water to the mix, shall be handled rapidly in as small masses as is practioal from the place of mixing to t_`.e place of final deposit, and shall be deposited in layers not to exceed six (6) inches in thickness. Each layer of concrete so placed shall be tamped and ran-med until it is thoroughly compact and until free water appears on the surface. Care shall be taken tha: the concrete is sufficient - 1Tr t:z,aped to prevent any sagging or bulging upon the removal of the front form. SZOTION 7. JOINT FILLER: The filler for all expansion and con - t-ract-Lor joints shall consist of composition board made of two layers of paper or felt and a filler of asphalt or composition board made of fibre permeated with asphalt. The thickness of the com- position board shall be as hereinafter specified or as shown on P, ans: The quality of the asphalt shall be such that it will not become soft in warn: weather or brittle in cold weather. When it is nedecary to splioe the joint filler, it shall be 'Laced or clipped together in a wor2rmanlike and effective manner. When in storage or.. the work_. all joint material shall be laid flat on plank. Sl -C) orvTlG'sd 6. CGNC.:i`�'TZ CURB; (PLASTERED) Cement concrete curbs shall be placer: upon a evbggrrade as specified in Section 4, and thoroughly dampeneC_ and comaoGed o cement concrete as specified in Section 6. A s (a) DI:d3;S1GPSr Al). curb shall be of the size and shape detailed on the plans o.r of standard sires designated as Class "A" or (Tars "B". ha.ing dimensions as follows: Top Bot,6om Leptr 111ront Back ---- - - - - -= Widt1l "Nidth Inches batter Batter I ^Cos Inchee TnChes Inches 018.68 A 1 2 2 , —IL66 J 15 12 17 The di:iencioris ;iv ;n miler 4.n case of plastered curb to the size of the curb before , J.e,ster 'La:i been applied to the face, bat not- to the top. The ra-li of all --u )7b returns shall be fifteen (15) feet at street interseC`�-_ one and fi.ve (5) feet at alley j ( s , (b) FM S: Front and back forms shall always be used.' Rigid outside forms shall be provided for curb returns having radii of four (4), eight (9), ten (10), twelve (12) or fifteen (15) felt. Benders or thin plank forms, rigidly placed, may be used for curb return having a radius not specified above and for curb or other curves. All curb forms must be carefully set to proper alignment and grades. The curb forms shall be rigidly held in place by the use of not less than seven (7) pairs of iron stakes to each twenty -one (21) foot section of curb,.and .other sections in proportion. Clamps, spreaders and braces shall be freely used•where required. Curb forms must be trued up and maintained to the re- quil,ed line rand grade in advance of pla.cinE concrete for a distance of 100 feet when the and of the work is more than 100 feet in advance of placing concrete. (c) PLASTEERING AND FINISHfUG: After the concrete body of the curb has been thoroughly rammed, the top shall be plastered with a finish mortar, mixed in the manner and proportions as specified in Section 6 hereof, to a depth of one -half (A -) inch. After removing the front form, the face of the curb shall be plastered with a cement mortar finish to a depth of not less than three (3) inches below the gutter line. The back of the curb shall be plastered with a, one- quarter (1-) inch coat of cement mortar finish to a depth of approximately three (3) inches from the top of the curb. The surface of the finishing coat shall be well floated and thoroughly troweled into the body-of the concrete, and shall then be marked off with vertical joints in blocks of uniform length of not less than two and one -half (2�) or more than three and one -half (3 ) ",feet in length. The finished curb must show a true straight face and top of uniform width, free from lumps, sags, or other defects. The front and back edges of the top of the curb shall be rounded to a radius of approximately three - quarters (3/4) inch. The concrete body shall not be allowed to become dry prior to placing the finishing coat. No more concrete body shall be placed at any one time than is to be covered and completed at one practically contlnuoup operation in the same day; Forms shall in no case be removed more than 100 feet in advance of plastering. (d) EXPANSION JOINTS: At all returns an expansion joint shall be placed at the end of the straight curb and twenty (20) feat therefrom and thereafter at twenty -one (21) foot intervals along straight curbs unless otherwise shown on the plans. This joint shall consist of not less than one (1) inch composition board at curb returns, and one -half (I) of an inch composition board on straight curb between returns, the composition board to be made as specified in Section 7. The composition board shall be shaped to the cross - section of the curb and placed at right angles to the curb grade. (e) PROTECTION AND CURING: CURING: Curbs s.--a.11 be completely covered with earth as soon as the curb is sufficiently set. The earth behind and on top of the curb shall be kept thoroughly dampened for ten (10) days after the curb has been completed. SECTION 9. UNPLASTERED CU ?B Unplastered cement concrete curb shall be constructed the same as plastered curb, described in Section 5 hereof, with the following changes: The proportioning and mixing of materials for concrete shall be as specified in Section 6. -5- I t � 1 ■F r � 1. d j ( s , (b) FM S: Front and back forms shall always be used.' Rigid outside forms shall be provided for curb returns having radii of four (4), eight (9), ten (10), twelve (12) or fifteen (15) felt. Benders or thin plank forms, rigidly placed, may be used for curb return having a radius not specified above and for curb or other curves. All curb forms must be carefully set to proper alignment and grades. The curb forms shall be rigidly held in place by the use of not less than seven (7) pairs of iron stakes to each twenty -one (21) foot section of curb,.and .other sections in proportion. Clamps, spreaders and braces shall be freely used•where required. Curb forms must be trued up and maintained to the re- quil,ed line rand grade in advance of pla.cinE concrete for a distance of 100 feet when the and of the work is more than 100 feet in advance of placing concrete. (c) PLASTEERING AND FINISHfUG: After the concrete body of the curb has been thoroughly rammed, the top shall be plastered with a finish mortar, mixed in the manner and proportions as specified in Section 6 hereof, to a depth of one -half (A -) inch. After removing the front form, the face of the curb shall be plastered with a cement mortar finish to a depth of not less than three (3) inches below the gutter line. The back of the curb shall be plastered with a, one- quarter (1-) inch coat of cement mortar finish to a depth of approximately three (3) inches from the top of the curb. The surface of the finishing coat shall be well floated and thoroughly troweled into the body-of the concrete, and shall then be marked off with vertical joints in blocks of uniform length of not less than two and one -half (2�) or more than three and one -half (3 ) ",feet in length. The finished curb must show a true straight face and top of uniform width, free from lumps, sags, or other defects. The front and back edges of the top of the curb shall be rounded to a radius of approximately three - quarters (3/4) inch. The concrete body shall not be allowed to become dry prior to placing the finishing coat. No more concrete body shall be placed at any one time than is to be covered and completed at one practically contlnuoup operation in the same day; Forms shall in no case be removed more than 100 feet in advance of plastering. (d) EXPANSION JOINTS: At all returns an expansion joint shall be placed at the end of the straight curb and twenty (20) feat therefrom and thereafter at twenty -one (21) foot intervals along straight curbs unless otherwise shown on the plans. This joint shall consist of not less than one (1) inch composition board at curb returns, and one -half (I) of an inch composition board on straight curb between returns, the composition board to be made as specified in Section 7. The composition board shall be shaped to the cross - section of the curb and placed at right angles to the curb grade. (e) PROTECTION AND CURING: CURING: Curbs s.--a.11 be completely covered with earth as soon as the curb is sufficiently set. The earth behind and on top of the curb shall be kept thoroughly dampened for ten (10) days after the curb has been completed. SECTION 9. UNPLASTERED CU ?B Unplastered cement concrete curb shall be constructed the same as plastered curb, described in Section 5 hereof, with the following changes: The proportioning and mixing of materials for concrete shall be as specified in Section 6. -5- I i, All forms :hall be thorou hly cleaned. each day and coated with a light oil 9s often as necessary to prevent the con- crete adhea_-in�: to them. Fo_rns shall be eith r ineta.l or of acceptable planed. and matched lumber. and of such construction that a smooth surface :ill be produced. The co ncret,= shall be tnoroi%.g ihly spade;. V,ith a spada or silldla_ `arpi -& tool until there are no rock rockets at eihe1 form. The forrr;s shall not oe removed in less than two (2) _lours or ! :or8 than six (b) .iOliT'S. I,amediately ofte -.' strippin_; the forms the cu-.b shall be t- oweled. Grout comoosec of one part of cement to one part of : plaster sand shall be applied to the face of the curb by means of a brush. The curb shall then be trozeled smooth and jointed. SCTIO•: 10. GOY ORM GCITTT. AND C :,OSS- GJT'T�.n: Cement concrete gutters shall be constructed upon a dampened subarade prepared as specified in Section 4. The gutter shall be constructed of cement concrete ae spe -,ified in Section 6. (a) DIi7INSION ?: The dimensions shall be as shown on the plans drawins anc typical cross- sections. The minimum thickness aftez thoroughly compacted shall not be less than six (6) inches. Where the gutter is 'built in connection with any pavement the minimum thickness shall be equal to the total thickness of the pavement, but not less than six (6) inches, (b) FC :=,5: Forms for outer face of gutter shall be placed true to line and grade and shall be held rigidly in place. Forms shall not be removed in'less than twelve (12) hours after the concrete is placed. (c) FINISHING: The concrete shall be tamped until the mortar is flushed to the surface. During the tamping of the concrete gauges or tem- pl:cts.: shall be used to determine the elevation'of the surface. The finished surface shall be free from humps and depressions. The sucfaco of the concrete shall be finished with a wooden float. The gutter shall then be marked off in blocks made to conform to the vertical lines already made on the adjacent curb. (d) UPAMSIO JOINTS: Expansion joints shall be planed in gutters opposite expansion joints in adjacent curb. Expansion joints will also be placed at end of gutters where same connect with . eross - gutters. The joint filler shall be placed so that the upper edge will be one - quarter (4) of an inch below the finished surface. The ecges of th.1 concrete next to the joint shall be rounded off to a radius of thre. -- eighths (318) of an inch, The joint fill; -r shall be a composition board made as hereinbefo_e specifiad, and having a thickness of one -half (z) of an inch. (e) Pii07'01IOY AYD CURING: Concrete gutter.shall be cured as provided under two course sideral'z in Section 9 hereof. No bituminous pavement shall be placed against con- crete gutter until the same is at least fourteen (14) days old. so SECTION 11. COMBINATION CONCRETE CUb'B AND GU ?'TER: Combination cement concrete curb and gutter shall be composed of the samo material and proportions as unplaetered curb. The dimensions shall be as shown upon the planate The back form for the curb and the outer form for 'Le gutter shall be placed to true line and grade. The forms shall be held in place by suitable clamps to prevent bulgipg. All forms shall be thoroughly cleaned -each day and coated with a light oil as often as necessary to prevent the concrete adhearing to them. Forms shall be of either metal or of acceptable planed or matched lumbar and of such construction that a smooth surface will be produced. The forms shall not be removed in less than two (2) or more than six (6) hours. The concrete shall be thoroughly tamped and spaded until there ate no rock pockets showing when the forms are removed. Grout composed of one part of cement to one part of plaster sand shall be applied to the face and surface of the curb and gutter by means of a brush. The curb and gutter shall then be troweled and then jointed as hereinbefore specified for curb and gutter. Expansion joints shall be placed as hereinbefore specified for curb and gutter. Protection and curing shall be as hbreinbefore speci- fied for curb and gutter. SECTION 12. TWO COURS' SIDE•�?ALK: Unless otherwise specified on the plans or ordinances, the two course type sidewalk shall be constructed. The cement concrete for the base of the.sidewalk shall be placed upon a thoroughly dampened subgracle as specified in Section 4 and composed of cement concrete as specified in Section 6. (a) DIMENSIONS: Two course sidewalk shall be constructed with a concrete base not less than three (j) inches in thickness after compacting, and covered with cement mortar finish one -half (!) inch thick,, making a total finished thickness of three and one -half (3�) inches, unless otherwise shown on the plans. Unless otherwise specified, the finished surface of the cement sidewalk shall lie in a plane sloping up from the established grade at the curb line at the rate of one - quarter (4) of an inch in one (1) foot. All sidewalk shall be of the width and constructed at the locations shown upon the plans, drawings and typical cross - sections of the proposed work. f (b) FORMS: Strips used as side forms shall be not less than three and one -half (j) inches in depth and shall have a smooth, straight upper edge. Forms shall be placed true to line and grade and shall not be removed in less than twelve (12) hours after the concrete is placed. (c) PLACING CEMENT MORTAR: Immediately after the concrete in the base has boon placed, the cement mortar, as specified in Section 6, shall be applied and thoroughly troweled in. Sufficient mortar shall be used so that its thickness shall not be less than one -half (Z) inch. The surface shall then be troweled with a steel trowel, floated and smoothly polished and evenly marked off into blocks. -7- � P 4 a � The blocks shall not be less than thirty (30) inches or 'aore than thirty -six (36) inches square, the grooves to be cut not loss than ono - quarter (4) of an inch in depth. When _ specified on the plane special markins of the surface of the sidewalk shall be made as shown on the plans. The adga of the calk shall be finished ; ^ith an edging, tool made for that purpose. (d) 3XPANSION JOINTS: There shall be constructed at the beginning of all street and alley returns or at the prolongation of the property line of the intersecting street or alley; also twenty -one (21) feet therefrom; then at intervals of not less than twenty -one (21) nor more than sixty (60) feet open expansion joints or filled expansion joints as indicated on the plans, Open expansion joints shall be constructed as follows: A ono - half.() inch steel plate the width and depth of the side- Talk, shall be placed at right angles frith the sidewalk prior to the lacing of concrete. The concrete base shall be 1well tamped on both sides of the steal plate and the finish coat placed.and roddod. A split float extending one foot on each side of the steel plate shall than ba used to insure a 1pval joint. After the first troweling of the finish coat the steel plate shall be carefully removed and. the edges of the opening rounded. with an edin�; tool having a radius of three - eights (3/2) of an inch. Txpansion joints shall be constructed as follows: The position of the transv °rse joints shall be marked on the forms on each side of the sidewalk at the locations called for on said plans or these specifications. A metal holder or wooden bulkhead cut to the cross - section of the sidewalk shall be securely staked in place normal to the center line of the sidewalk, and perpen- dicular to the finished surface of the sidewalk. The joint filler one -half M. inch in thickness shall then be placed in the holder or against2the bulkhead and held firmly in place with stirrups angles, pins outstanding lugs or any other means that will not interfere with the removal of the holder or bulkhead nor cause the expansion :rat-,rial to be pulled out of place when the holder or bulkhead is removed. After the joint filler has boen securely staked in place the concrota shall be deposited on bath sides of the section and struck off with the templet before the holder or bulkhead is removed. The holder or bulkhead shall not be removed until after the tamping templet,has passed over the section. The holder or bulkhead shall be removed by slowly lifting from one and and re- placinS with concrete as it is lifted so that the joint filler will be left with the lower edge resting on the subgrada and the upper edge one - quarter (u) inch belov; the finished surface of the side- walk. After the sidewalk has been finally finished, the finish coat shall be cut through ;pith a jointer or other tool leaving the joint filler exposed for its total length and thickness. The joint thus opened shall be straight and any stones encountered shall be removed and new finish !sortar troweled into place leaving a clean open joint. The slabs on both sides of an expansion joint shall �e finished with an edging tool to a radius of three - eights (3/8) of an inch. True surface alignment of concrete on both sides of the joint must be maintained. (e) PROTMCTION AND CURING: Sidewalk shall be covered with earth or sand to a depth of two 2) inches as soon as the work has become sufficiently set. This covering shall be kept thoroughly damp for ten (10) days. The work shall also be protected from the sun prior to covering sand or earth, by the use of clean burlap or canvas. IM Awk � I STCTIOW 13. COLOS COAT TIiyISH Or SID77ALK: loan spccifiad on the plans the cement mortar finish on the sidewalk shall ba colored by adding dry mineral coloring pigent as manufactured by Lamrens Process Company or equal. Only dry Eineral coloring shall be usad. The conent s.ortar to be us3d in finishing the sidewalk shall be composed of the following materials: I. PortlAnd. Cement......... 1 part by volume. 2. Sand . ................... 2 parts by volume. The might of the coloring material to be added shall not exceed four (4) per cent of the weight of the cement used in the mortar, unless otherwise specified on the plans. The cement and coloring material shall first be thoroughly mixed dry on the job. Proper care shall be taken to prevent addition of any foreign matter while :nixing. SICTION 14. CONTRACTOR'S NAY7 ON WORK: The Contractor shall stamp his name and the year built on all P,ok done by him at least once in every 100 lineal feat of work and at each end of all :pork. The letters shall not be smaller than thrae- ouarters of an inch in height and impressed to.a depth of one- carter (1) of an inch. ME CITY OF NETIFORT BEACH CALIFOROIA STANDARD SPECIFICATIONS NO. 64. FOR THE CONSTRUCTION OF REINFORCED CEMENT CONCRETE RETAINING WALL, PRECAST TYPE. Page SECTION 1. GENERAL REQUIREMENTS .................... 1 SECTION 2. PLANS ......... ............................... 1 SECTION 3. WORK .......... ............................... 1 SECTION 4. EXCAVATION .... ............................... 1 SECTION b. CEbIENT CONCRETE .............................. 1 ((a MATERIALS ............................... 1 (b PRO ORTIONING OF MATERIALS .............. 1 ((C ll.IM4G......... 2 d PLACING COI :CRETE ..............:......... 2 e CURING AND FINISHING ...............•.••• 3 (i FoRlds .... ............................... 3 (g PLACING REIiiYORCEMENT ................... 3 SECTION 6. CONCRETE PILES ............................... 3 (a) CURING .... ............................... 3 (b DRIVING .. ............................... 3 SECTTION 7. PRECAST CONCRETE SLABS ....................... 4 SECTION 8. CONCRETE COPING .............................. 4 SECTION 9. ANCHOR PILES AND TIE RODS .................... 4 SECTION 10. EXP;;ivSION JOINTS ............................. 4 SECTION 11. PLACI17G CONCRETE SLABS ....................... 4 CITY OF NEV, ORT BEACH CALIFORNIA STANDARD SPEC UICATIONS NO. 64. FOR THE CONSTRUCTIOA OF REIN20RCED CEb9ENIT CONCRETE RETAINING WALL, PRECAST TYPE. SECTION 1. GENERAL REQliIR_niEl'TS; The General`Recuirements shall conform to Standard Sprzci i,;atio;is No. 50 for "General Requirements". SECTION 2. LAiiS: The detailed location of the work to be done, together with grades, cross— sections and s'_,:)ecial construction, is illustrated on the maps, profiles, cross — sections and plans adopted therefor by the City Council, and on file in the office of the City Engineer. These maps, plans, profiles and cross — sections are to be considered a part of these specifications, and any notations appear- ing thereon shall be considered as though incorporated as a part of these specifications. All distances and measurements given are in a horizontal plane. All work shall, during its progress and on its completion, conform to the Lines and levels which may from time to time be givon by the City Enginoor. SECTION 3. wbRK: The work to be done consists of the following: (a) To excavate or fill in to such an extent and in such a manner as may be -required by= the plans, profiles and cross — sections and these specifiea_tions, the area in which the improvement is pro- vided for on the plans. (b) To furnish all materials as hereinafter provided for and required for the construction and completion of the improvement in accordance with the plans and specifications and all labor, tools and equipment necessary i'or the performance of said work. (c) To construct the reinforced cement concrete retaining wall as hereinafter specified. SECTIO14 4. EXCAVATION; The Contractor shall make sufficient ex- cavation to construct all work shown on the plans. Excavation shall include the removal of all materials or obstructions of any nature that would interfere with the execution of the work. Surplus material not required in backfilling shall be promptly romoved by the Contractor and disposed of by him. SECTION 5. CEMENT CONCRETE: (a) MATERIALS: Cement, sand, gravel, rock and reinforcing steel shall conform to Standard Specifications No. 51 for "Portland Adh Cement ", "Sand ", "Gravel ", "Rock ", and "Reinforcing Steel" respect- ively. ;ATER: Water shall be clean, free from oil, acid, alkali or vegetable matter. (b) PROPORTIONIED OF MATERIALS: The concrete for reinforced concrete piles, precast slabs, and coping shall be composed of the following materials and in the following proportions; Portland Cement, 94 pounds (1 bag or 1 cu. ft.) A mixture of sand and pea gravel, having a fineness modulus of 4.00, 190 pounds. Gravel or broken stone having a fineness modulus of not less than 7.20 nor more than 7,.40, 270 pounds. Water, 5.5 gallons. (1) C 4 Requiring 6.75 bags of comont to 1 cubic yard of con - croto in place. All weights are based u;•)on dry materials. The mixture of sand and �Dea Gravel is based upon a specific gravity of 2.68 and weighing 107 pounds per cubic foot dry, loose measure; the rock upon a specific gravity of 2.73 and =ieighing 98 pounds per cubic foot, dry, loose measure. In measuring the ouantity of water specified or in weighing concrete materials, allo ; ?arica must be made ao-r moisture contained in tae sand, pea gravel, rock or gravel and deducted from the quantit> of water or weights of material specified. Gravel or broken stone stall be uniformly graded 'with not less than 906 by weight being retained on a 3/8 inch screen and all passing a.li inch screen, having a fineness modulus of not less than 7.40 nor more than 7.60. The fineness modulus of the sand and pea gravel shall be determined and such percentage of each material Shall be used to ob- tain a mixture'the fineness modulus of which will be equal to that herein specified. Gravel shall show a loss of not more than 32 per cent and broken stone a loss of not more than 22 per cent when subjected to the rattler test. (c) laIAING. all mixing, of concrete shall be done in a batch mixer. Tho mixer shall be charged with cement and sufficient sand and gravel or broken stone to conform to the proportions hero - inbefore spocifiod. Sufficiont water, not in excess of tho quantity above specified, shall be addod to produce a plastic or quaking con - crote which can be handlod without. causing a soparation of tho coarse aggrogsto from tho mortar. The ;eater tank on the mixer shall be so arranged that the amount of water required for each batch of concrete can be positively and accurately measured and while the water is dis- charging the inlet supply shall be automatically cut off. The drum of the mixer shall revolve at a rate of speed not to exceed the rate of speed specified by the maker of the mixer, provided, however, that the drum shall make not loss than ten (10) nor more than eighteen (18)' revolutions per minute. Evory batch of concrete shall bo mixod in the drum of tho mixer not loss than ono and one —half (1�) minutes bofore any por- tion of the batch is discharged from said drum. The drum shall not be charged while the mixer is discharging. No concrete shall be used which has partially set and no concrete shall be rotompered or romixed. (d) PLACING CONCRETE: The concrete shall bo carefully do- positod in the work and in such a manner to insure a smooth surface -� next to the forms and shall be thoroughl=y spaded and worked around the roinforcement. and into the recesses of the Sorms. All surfaces on or against which concrete is to be laid shall be thoroughly watered just previous to placing the concrete. Concrete shall be placed in horizontal layers not to exceed six (6) inches in depth and shall be thoroughly rammed, agitated or spaded until free from voids, air bubbles and rock or water pockets. Where fresh concrete is to be placed on or against con- crete which has set, the surface of the latter shall be roughened, cleaned, thoroughly wet and then covered with a thin layer of neat cement mortar. No concrete shall be deposited under or in water; her shall any water be allowed to run over or on concrete before it has sot. —2— totted and we be air before (e) CURING from the sun t for a perio cured for at being placed :�4 _-�A AND FINISHI11\10: All exvosod concrete shall be pro - and wind and all concrete shall be kept covered i of rot less than fourteen (14) dairs and shall least an additional period of fourteen (14) days in the work. Immodiatoll., after the forms are removed; all irregular - itios shall be corrected by filling depressions with mortar and by carefully cutting down projecting portions. The and of all tie ..vires shall be cut off and neatly plasterel with cement mortar. (f) FOPUIS: Forms shall be substantial, unyielding and so constructed that the concrete conforms to the designs and shall also be tight to prevent the leakage of mortar. The forms for exposed surfaces shall be sound lumber, planed to uniform thickness, either tongued and grooved or with edges beveled so as to insure tight joints. Forms shall bo painted with boiled linseed oil or eoually good preparation to prevent the concrete from ad-hearing to tho forms. Crude oil -or any material such as tar paper that will stick to or discolor the concrete will not be permitted to be used. (g) PLACING REINFORCEMENT: Reinforcement shall be placed in the exact locations as shown on the plans and wired at inter- sections so that it will not become disarranged, during the deposit- ing of the concrete. When bars are spliced, the ends of the re- inforcing bars shall be overlapped a distance equal to 40 times the diameter or thickness o:i the bar or rod. Splices at points of maximum stress will not be permitted. Steel shall not be laid directlir on the forms and raised during plac4ng of concrete by prying it up and working; con- crete under it, but should be laid on small stones or concrete blocks which may remain when the concrete is placed. In general, all steel shall be securely placed before any concrete is deposited. SECTION 6. CONCRETE PILES: The concrete piles shall be composed of materials as hereinbefore specified. The piles shall be properly re- inforced as shown on the plans, care being taken to insure that the reinforcing steel is placed and held firmly in correct position. (a) CURING: Concrete piles shall be kept wet for fourteen (14) days after pouring and shall be allowed to harden for at least thirty k$0) days before being; lifted or driver.. When removed from the forms, they shall present true, smooth, even surfaces, free from honeycomb and voids and shall be straight so that a line strgtohecl :rem the buttto the tip on any face will not be more than one -half (2) inch from the face of the pile at any -point. Concrete piles must be so handled at all times to avoid breaking or chipping the edges. The Contractor shall provide slings at or near the quarter points for raising.or transporting long piles. ,An (b) DRIVING: The piles shall be accurately spaced and driven or jetted vertically as shown on the plans and according to the stakes set by the Engineer. Piles that are injure(. in driving and piles that are dr =ven out of place shall be withdrawn or cut off as directed by the Engineer. If a hammer is used to drive the piles the heads of the concrete piles shall be protected from the direct impact of the hammer by a cv.shion head and this cushion head shall be so arranged that the reinforcing bars projecting above the pile will not be injured in driving. For jetting a :eater jet shall be used, The jetting apparatus of sufficient capacity must be furnished by the Contractor. A gaugo "shall pressure may be determined wuch a depth as V,.e EnCine discontinued and the piles 1 -- be provided in* the jet line so that the at all times. After jetting the miles to �r ra ,rescribe, the uee o- the jet'.vill be driver. to required grade with hammer alone. SECTION 7. PRECAST CONCRETE SLABS: The concrete to be used in pre - cast slabs shall be as hereinbefore specified. The reinforcing steel shall be -,laced as shown on the plans, care being taken to see that the steel is placed and held iirmlN.% in the correct position. The ey -oosel surfaces of the concrete shall present a smooth uniform surface, _'roc prom marks and voids. SEC TIOK S. CONCRETE COPING: Forms s'.all be either metal or of acceptable planed and matched lumber and of such construction that a smooth surface will be produced. The forms shall not be removed in less than twenty —sour (24) hours. Immediately after removal of forms all exposed surfaces shall be given a brush coat of neat cement mash, composed of one (1) part Portland-Cement to one (1) part of.nhite sand by volume. SECTION 9.... ANCHOR PILES A14D TIE RODS: Anchor riles shall be Cedar well seasone , firm and sound and free from worn holes, large or rotten knots, or any other defect or mechanical injury which will. impair their strength for the purpose specified. The 1" tie rods, washers, nuts and sleeve nuts, shall be steel, hot dipped galvanized after threading and shall receive one (1) coat of Bitumastic Solution after installation. The 1" x 210" anchor bolt to be cast in every alternate concrete pile shall be hot dipped galvanized and shall be painted with one (1) coat of Bit - umastic Solution outside of the concrete pile. Before backfilling is done against the slabs, the tie rods shall be tightened to the point where a strain is visible upon the wooden pile. SECTION 10. EXPANSION JOINTS: Expansion joints shall be placed for the full width and depth of the concrete where indicated on the plans. The joint filler shall conform to Section S,Standard Specifications No. 51. SECTION 11. PLACING CONCRETE SLABS: The concrete slabs shall be carefully placed as shown on plans. The spaces between the ends of the slab and the side of the piles shall be filled with cement grout composed of one (1) part Portland Cement to two (2) parts of sand by volume. 1:,era shown on the plans, a one — quarter ll,) inch tarred felt shall be placed before grouting. a —4— Passed and approved this Z ff day of gk4az , 1929• - -y. Mayor of the C y of Newport Beach Rin ATTEST: City clerk. STATE OF CALIFORNIA, ) COUNTY OF ORANGE, )ss. CITY OF NEWPORT BEACH.) I, , City Clerk of the City of Newport Beach, do hereby ertify that the foregoing resolution, being Resolution No. was adopted by the Board of Trustees of said City, signed by the President of said Board, and attested by the City Clerk, all at a regular meeting thereof, held on the --2n—� day of , 1929, and that the same was adopted by the following vote, to wit: AYES: Trustees, 04<4w', NOES: Trustees, ABSENT: Trustees ity Cler of the City of Newport Beach.