1、Designation:C76M11 Designation: C76M 12Standard Specification forReinforced Concrete Culvert, Storm Drain, and Sewer Pipe(Metric)1This standard is issued under the fixed designation C76M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revis
2、ion, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification c
3、overs reinforced concrete pipe intended to be used for the conveyance of sewage, industrial wastes, andstorm water, and for the construction of culverts.1.2 This specification is the SI companion to Specification C76.NOTE 1This specification is a manufacturing and purchase specification only, and do
4、es not include requirements for bedding, backfill, or therelationship between field load condition and the strength classification of pipe. However, experience has shown that the successful performance of thisproduct depends upon the proper selection of the class of pipe, type of bedding and backfil
5、l, controlled manufacture in the plant, and care and installationconforms to the construction specifications. The owner of the reinforced concrete pipe specified herein is cautioned that he must correlate the fieldrequirements with the class of pipe specified and provide inspection at the constructi
6、on site.NOTE 2Attention is called to the specification for reinforced concrete D-load culvert, storm drain, and sewer pipe (ASTM Designation C655M).2. Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA82/A82MSpecification for Steel Wire, Plain, for Concrete R
7、einforcementA185/A185MSpecification for Steel Welded Wire Reinforcement, Plain, for ConcreteA496/A496MSpecification for Steel Wire, Deformed, for Concrete ReinforcementA497/A497MSpecification for Steel Welded Wire Reinforcement, Deformed, for ConcreteA615/A615M Specification for Deformed and Plain C
8、arbon-Steel Bars for Concrete ReinforcementA706/A706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete ReinforcementA1064/A1064M Specification for Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for ConcreteC33 Specification for Concrete AggregatesC150 Specificati
9、on for Portland CementC260 Specification for Air-Entraining Admixtures for ConcreteC309 Specification for Liquid Membrane-Forming Compounds for Curing ConcreteC494/C494M Specification for Chemical Admixtures for ConcreteC497M Test Methods for Concrete Pipe, Manhole Sections, or Tile MetricC595 Speci
10、fication for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in ConcreteC655M Specification for Reinforced Concrete D-Load Culvert, Storm Drain, and Sewer Pipe (Metric)C822 Terminology Relating to Concrete Pipe and Related ProductsC989 Specif
11、ication for Slag Cement for Use in Concrete and MortarsC1017/C1017M Specification for Chemical Admixtures for Use in Producing Flowing ConcreteC1116 Specification for Fiber-Reinforced Concrete and Shotcrete3. Terminology3.1 DefinitionsFor definitions of terms relating to concrete pipe, see Terminolo
12、gy C822.1This specification is under the jurisdiction of ASTM Committee C13 on Concrete Pipe and is the direct responsibility of Subcommittee C13.02 on Reinforced Sewerand Culvert Pipe.Current edition approved Feb.May 1, 2011.2012. Published March 2011.June 2012. Originally approved in 1980. Last pr
13、evious edition approved in 20102011 asC76M10a.C76M 11. DOI: 10.1520/C0076M-112.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page
14、on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that us
15、ers consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Classification4.1 Pipe m
16、anufactured in accordance with this specification shall be of five classes identified as Class I, Class II, Class III, ClassIV, and Class V. The corresponding strength requirements are prescribed in Tables 1-5.5. Basis of Acceptance5.1 Unless otherwise designated by the owner at the time of, or befo
17、re placing an order, there are two separate and alternativebases of acceptance. Independent of the method of acceptance, the pipe shall be designed to meet both the 0.01-in. crack andultimate strength requirements specified in Tables 1-5.5.1.1 Acceptance on the Basis of Plant Load-Bearing Tests, Mat
18、erial Tests, and Inspection of Manufactured Pipe for VisualDefects and ImperfectionsAcceptability of the pipe in all diameters and classes produced in accordance with 7.1 or 7.2 shall bedetermined by the results of the three-edge bearing tests as defined in 11.3.1; by such material tests as are requ
19、ired in 6.2, 6.3, 6.5and 6.6; by an absorption test of the concrete from the wall of the pipe as required in 11.9; and by visual inspection of the finishedpipe to determine its conformance with the accepted design and its freedom from defects.5.1.2 Acceptance on the Basis of Material Test and Inspec
20、tion of Manufactured Pipe for Defects and ImperfectionsAcceptability of the pipe in all diameters and classes produced in accordance with 7.1 or 7.2 shall be determined by the resultsof such material tests as are required in 6.2, 6.3, 6.5 and 6.6; by crushing tests on concrete cores or cured concret
21、e cylinders; byan absorption test of the concrete from the wall of the pipe for each mix design that is used on an order; and by inspection of thefinished pipe including amount and placement of reinforcement to determine its conformance with the accepted design and itsfreedom from defects.5.1.3 When
22、 agreed upon between the owner and manufacturer, any portion or any combination of the tests itemized in 5.1.1 or5.1.2 may form the basis of acceptance.5.2 Age for AcceptancePipe shall be considered ready for acceptance when it conforms to the requirements as indicated bythe specified tests.6. Mater
23、ials6.1 Reinforced ConcreteThe reinforced concrete shall consist of cementitious materials, mineral aggregates, and water, inwhich steel has been embedded in such a manner that the steel and concrete act together.6.2 Cementitious Materials:6.2.1 CementCement shall conform to the requirements for por
24、tland cement of Specification C150 or shall be portlandblast-furnace slag cement or slag modified portland cement, or portland-pozzolan cement conforming to the requirements ofSpecification C595, except that the pozzolan constituent in the Type IP portland-pozzolan cement shall be fly ash.6.2.2 Grou
25、nd Granulated Blast-Furnace SlagGGBFS shall conform to the requirements of Grade 100 or 120 of SpecificationC989.NOTE 1The total reinforcement area of the inner circular cage and the elliptical cage shall not be less than that specified for the inner cage in Tables1-5.NOTE 2The total reinforcement a
26、rea of the outer circular cage and the elliptical cage shall not be less than that specified for the outer cage in Tables1-5.FIG. 1 Triple Cage ReinforcementC76M 1226.2.3 Fly AshFly ash shall conform to the requirements of Class F or Class C of Specification C618.6.2.4 Allowable Combinations of Ceme
27、ntitious MaterialsThe combination of cementitious materials used in the concrete shallbe one of the following:6.2.4.1 Portland cement only,6.2.4.2 Portland blast furnace slag cement only,6.2.4.3 Slag modified Portland cement only,6.2.4.4 Portland pozzolan cement only,6.2.4.5 A combination of Portlan
28、d cement and ground granulated blast-furnace slag,6.2.4.6 A combination of Portland cement and fly ash, or6.2.4.7 A combination of Portland cement, ground granulated blast-furnace slag (not to exceed 25 % of the total cementitiousweight) and fly ash (not to exceed 25 % of the total cementitious weig
29、ht).6.2.4.8 A combination of portland pozzolan cement and fly ash, provided the fly ash added does not exceed 25 % by weight ofthe portland pozzolan cement.6.3 AggregatesAggregates shall conform to Specification C33 except that the requirement for gradation shall not apply.6.4 Admixtures and BlendsT
30、he following admixtures and blends are allowable:6.4.1 Air-entraining admixture conforming to Specification C260;6.4.2 Chemical admixture conforming to Specification C494/C494M;6.4.3 Chemical admixture for use in producing flowing concrete conforming to Specification C1017/C1017M; and6.4.4 Chemical
31、admixture or blend approved by the owner.6.5 Steel ReinforcementReinforcement shall consist of wire conforming to Specification A82/A82M or SpecificationA496/A496M; or of wire reinforcement conforming to SpecificationA185/A185M or SpecificationA497/A497MReinforcementshall consist of wire conforming
32、to SpecificationA1064/A1064M; or of bars conforming to SpecificationA36/A36M, SpecificationTABLE 1 Design Requirements for Class I Reinforced Concrete PipeANOTE 1See Section 5 for basis of acceptance specified by owner.The strength test requirements in newtons per linear metre of pipe under the thre
33、e-edge-bearing method shall be either the D-load (test load expressedin newtons per linear metre per millimetre of diameter) to produce the 0.3-mm crack, or the D-loads to produce the 0.3-mm crack and the ultimate loadas specified below, multiplied by the internal diameter of the pipe in millimetres
34、.D-load to produce a 0.3 mm crack 40.0D-load to produce the ultimate load 60.0InternalDesignatedDiameter,mmReinforcement, cm2/linear m of pipe wallWall A Wall BConcrete Strength, 27.6 MPa Concrete Strength, 27.6 MPaWallThickness,mmCircularReinforcementBEllipticalReinforcementCWallThickness,mmCircula
35、rReinforcementBEllipticalReinforcementCInnerCageOuterCageInnerCageOuterCage1500 125 5.3 3.2 5.9 150 4.4 2.6 4.91650 138 6.4 3.8 7.0 163 5.3 3.2 5.91800 150 7.4 4.4 8.3 175 6.1 3.7 6.81950 163 8.5 5.1 9.3 188 6.8 4.1 7.62100 175 9.5 5.7 10.6 200 7.8 4.7 8.72250 188 10.4 6.2 11.4 213 8.7 5.2 9.72400 2
36、00 11.4 6.8 12.7 225 9.7 5.8 10.8Concrete Strength, 34.5 MPa2550 213 13.3 8.0Inner CircularPlus Elliptical5.38.0238 11.4 6.8Inner CircularPlus Elliptical4.66.82700 225 14.4 8.6Inner CircularPlus Elliptical5.88.6250 12.9 7.7Inner CircularPlus Elliptical5.27.72850A. . . .A. . . .3000A. . . .A. . . .31
37、50A. . . .A. . . .3300A. . . .A. . . .3450A. . . .A. . . .3600A. . . .A. . . .AFor modified or special designs, see 7.2 or with the permission of the owner utilize the provisions of Specification C655M. Steel areas may be interpolated betweenthose shown for variations in diameter, loading, or wall t
38、hickness. Pipe over 2400 mm in diameter shall have two circular cages or an inner circular plus one elliptical cage.BAs an alternative to designs requiring both inner and outer circular cages the reinforcement may be positioned and proportioned in either of the following manners:An inner circular ca
39、ge plus an elliptical cage such that the area of the elliptical cage shall not be less than that specified for the outer cage in the table and the total areaof the inner circular cage plus the elliptical cage shall not be less than that specified for the inner cage in the table,An inner and outer ca
40、ge plus quadrant mats in accordance with Fig. 2, orAn inner and outer cage plus an elliptical cage in accordance with Fig. 1.CElliptical and quadrant steel must be held in place by means of holding rods, chairs, or other positive means throughout the entire casting operation.C76M 123A615/A615M Grade
41、 40 or 60, or Specification A706/A706M Grade 60.6.6 Synthetic FibersCollated fibrillated virgin polypropylene fibers may be used, at the manufacturers option, in concretepipe as a nonstructural manufacturing material. Only Type III synthetic fibers designed and manufactured specifically for use inco
42、ncrete and conforming to the requirements of Specification C1116 shall be accepted.7. Design7.1 Design TablesThe diameter, wall thickness, compressive strength of the concrete, and the area of the circumferentialreinforcement shall be as prescribed for Classes I to V in Tables 1-5, except as provide
43、d in 7.2.7.1.1 The reinforcement as presented in the tables herein allows single circular cage reinforcement or separate inner and outercircular cage reinforcement or single elliptical cage reinforcement or a combination thereof.Footnotes to the tables are intended to clarify tabulated requirements
44、or provide acceptable alternative reinforcement designs,TABLE 2 Design Requirements for Class II Reinforced Concrete PipeANOTE 1See Section 5 for basis of acceptance specified by owner.The strength test requirements in newtons per linear metre of pipe under the three-edge-bearing method shall be eit
45、her the D-load (test-load expressedin newtons per linear metre per millimetre of diameter) to produce the 0.3-mm crack, or the D-loads to produce the 0.3-mm crack and the ultimate loadas specified below, multiplied by the internal diameter of the pipe in millimetres.D-load to produce a 0.3 mm crack
46、50.0D-load to produce the ultimate load 75.0InternalDesignatedDiameter,mmReinforcement, cm2/linear m of pipe wallWall A Wall B Wall CConcrete Strength, 27.6 MPa Concrete Strength, 27.6 MPa Concrete Strength, 27.6 MPaWallThick-ness,mmCircularReinforcementBEllipticalReinforcementCWallThickness,mmCircu
47、larReinforcementBEllipticalReinforcementCWallThickness,mmCircularReinforcementBEllipticalReinforcementCInnerCageOuterCageInnerCageOuterCageInnerCageOuterCage300 44 1.5D. . 50 1.5D. . 69 1.5D. .375 47 1.5D. . 57 1.5D. . 75 1.5D. .450 50 1.5D. 1.5 63 1.5D. 1.5D82 1.5D. 1.5D525 57 2.5 . . . 2.1 69 1.5D
48、. 1.5D88 1.5D. 1.5D600 63 2.8 . . . 2.3 75 1.5D. 1.5D94 1.5D. 1.5D675 66 3.2 . . . 2.8 82 2.8 . . . 2.3 100 1.5D. 1.5D750 69 3.2 . . . 3.0 88 3.0 . . . 2.5 106 1.5D. 1.5D825 72 3.4 . . . 3.2 94 3.2 . . . 2.8 113 1.5D. 1.5D900 75 3.0 1.8 3.2 100E2.5 1.5 2.8 119E1.5 1.5 1.71050 88 3.4 2.0 3.8 113 3.2
49、1.9 3.6 132 2.1 1.5 2.31200 100 4.5 2.7 4.9 125 3.8 2.3 4.2 144 3.0 1.8 3.21350 113 5.3 3.2 5.9 138 4.7 2.8 5.1 157 3.6 2.2 4.01500 125 6.4 3.8 7.0 150 5.3 3.2 5.9 169 4.7 2.8 5.11650 138 7.4 4.4 8.3 163 6.6 4.0 7.2 182 5.3 3.2 5.91800 150 8.7 5.2 9.5 175 7.4 4.4 8.3 194 6.4 3.8 7.01950 163 9.7 5.8 10.8 188 8.5 5.1 9.3 207 7.4 4.4 8.32100 175 10.8 6.5 12.1 200 9.7 5.8 10.8 219 8.7 5.2 9.72250 188 12.1 7.3 13.3 213 10.8 6.5 12.1 232 10.2 6.1 11.22400 200 13.1 7.9 14.6 225 12.1 7.3 13.3 244 11.6 7.0 12.9Concrete Strength, 34.5 MPa2550 213 16.1 9.7 Inner Cir
