1、Designation:C7610a Designation: C76 11Standard Specification forReinforced Concrete Culvert, Storm Drain, and Sewer Pipe1This standard is issued under the fixed designation C76; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the y
2、ear of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () 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 covers rein
3、forced 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 inch-pound companion to Specification C76M; therefore, no SI equivalents are presented in thisspecification. Reinforced concret
4、e pipe that conform to the requirements of C76M, are acceptable under this Specification C76unless prohibited by the Owner.NOTE 1This specification is a manufacturing and purchase specification only, and does not include requirements for bedding, backfill, or therelationship between field load condi
5、tion 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 backfill, and care that installation conforms to the constructionspecifications. The owner of the rei
6、nforced concrete pipe specified herein is cautioned that he must correlate the field requirements with the class of pipespecified and provide inspection at the construction site.NOTE 2Attention is called to the specification for reinforced concrete D-load culvert, storm drain, and sewer pipe (Specif
7、ication C655).2. Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA82/A82M Specification for Steel Wire, Plain, for Concrete ReinforcementA185/A185M Specification for Steel Welded Wire Reinforcement, Plain, for ConcreteA496/A496M Specification for Steel Wire,
8、 Deformed, for Concrete ReinforcementA497/A497M Specification for Steel Welded Wire Reinforcement, Deformed, for ConcreteA615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA706/A706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinf
9、orcementC33 Specification for Concrete AggregatesC76M Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe (Metric)C150 Specification for Portland CementC260 Specification for Air-Entraining Admixtures for ConcreteC309 Specification for Liquid Membrane-Forming Compounds for Cur
10、ing ConcreteC494/C494M Specification for Chemical Admixtures for ConcreteC497 Test Methods for Concrete Pipe, Manhole Sections, or TileC595 Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in ConcreteC655 Specification for Re
11、inforced Concrete D-Load Culvert, Storm Drain, and Sewer PipeC822 Terminology Relating to Concrete Pipe and Related ProductsC989 Specification for Slag Cement for Use in Concrete and MortarsC1017/C1017M Specification for Chemical Admixtures for Use in Producing Flowing ConcreteC1116 Specification fo
12、r Fiber-Reinforced Concrete and Shotcrete3. Terminology3.1 DefinitionsFor definitions of terms relating to concrete pipe, see Terminology 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 Se
13、werand Culvert Pipe.Current edition approved AprilFeb. 1, 2010.2011. Published May 2010.March 2011. Originally approved in 1930. Last previous edition approved in 2010 as C76 10a.DOI: 10.1520/C0076-10A.10.1520/C0076-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact
14、ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page 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
15、made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users 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.C
16、opyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Classification4.1 Pipe manufactured in accordance with this specification shall be of five classes identified as Class I, Class II, Class III, ClassIV, and Class V. The corresponding s
17、trength requirements are prescribed in Tables 1-5.5. Basis of Acceptance5.1 Unless otherwise designated by the owner at the time of, or before 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
18、 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, Material Tests, and Inspection of Manufactured Pipe for VisualDefects and ImperfectionsAcceptability of the pipe in all diameters and classes produced in accordanc
19、e 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 required in 6.2, 6.3, 6.5,and 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
20、 to determine its conformance with the accepted design and its freedom from defects.5.1.2 Acceptance on the Basis of Material Tests and Inspection 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
21、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 concrete 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 pi
22、pe including amount and placement of reinforcement to determine its conformance with the accepted design and itsfreedom from defects.5.1.3 When agreed upon by the owner and manufacturer, any portion or any combination of the tests itemized in 5.1.1 or 5.1.2may form the basis of acceptance.TABLE 1 De
23、sign Requirements for Class I Reinforced Concrete PipeANOTE 1See Section 5 for basis of acceptance specified by the owner.The strength test requirements in pounds-force per linear foot of pipe under the three-edge-bearing method shall be either the D-load (test loadexpressed in pounds-force per line
24、ar foot per foot of diameter) to produce a 0.01-in. crack, or the D-loads to produce the 0.01-in. crack and the ultimateload as specified below, multiplied by the internal diameter of the pipe in feet.D-load to produce a 0.01-in. crack 800D-load to produce the ultimate load 1200InternalDesignatedDia
25、meter,in.Reinforcement, in.2/linear ft of pipe wallWall A Wall BConcrete Strength, 4000 psi Concrete Strength, 4000 psiWallThickness,in.CircularReinforcementBEllipticalReinforcementCWallThickness,in.CircularReinforcementBEllipticalReinforcementCInnerCageOuterCageInnerCageOuterCage60 5 0.24 0.15 0.27
26、 6 0.21 0.12 0.2366 512 0.30 0.18 0.33 612 0.24 0.15 0.2772 6 0.35 0.21 0.39 7 0.29 0.17 0.3278 612 0.40 0.24 0.44 712 0.32 0.19 0.3684 7 0.45 0.27 0.50 8 0.36 0.21 0.4190 712 0.49 0.29 0.54 812 0.41 0.24 0.4596 8 0.54 0.32 0.60 9 0.45 0.27 0.51Concrete Strength, 5000 psi102 812 0.63 0.38 Inner Circ
27、ularPlus Elliptical0.240.38912 0.54 0.32 Inner CircularPlus Elliptical0.210.32108 9 0.68 0.41 Inner CircularPlus Elliptical0.270.4110 0.60 0.36 Inner CircularPlus Elliptical0.240.36114A. . . .A. . . .120A. . . .A. . . .126A. . . .A. . . .132A. . . .A. . . .138A. . . .A. . . .144A. . . .A. . . .AFor
28、modified or special designs see 7.2 or with the permission of the owner utilize the provisions of Specification C655. Steel areas may be interpolated between thoseshown for variations in diameter, loading, or wall thickness. Pipe over 96 in. in diameter shall have two circular cages or an inner circ
29、ular 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 cage plus an elliptical cage such that the area of the elliptical cage shall not be less
30、 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 cage plus quadrant mats in accordance with Fig. 1, orAn inner and outer cage plus an ell
31、iptical cage in accordance with Fig. 2.CElliptical and quadrant steel must be held in place by means of holding rods, chairs, or other positive means throughout the entire casting operation.C761125.2 Age for AcceptancePipe shall be considered ready for acceptance when it conforms to the requirements
32、 as indicated bythe specified tests.6. Materials6.1 The aggregate shall be so sized, graded, proportioned, and mixed with such proportions of Portland cement, blendedhydraulic cement, or Portland cement and supplementary cementing materials, or admixtures, if used, or a combination thereof,and water
33、 to produce a homogenous concrete mixture of such quality that the pipe will conform to the test and design requirementsof the specification. In no case, however, shall the proportion of Portland cement, blended hydraulic cement, or a combination ofPortland cement and supplementary cementing materia
34、ls be less than 470 lb/yd3.TABLE 2 Design Requirements for Class II Reinforced Concrete PipeANOTE 1See Section 5 for basis of acceptance specified by the owner.The strength test requirements in pounds-force per linear foot of pipe under the three-edge-bearing method shall be either the D-load (test
35、loadexpressed in pounds-force per linear foot per foot of diameter) to produce a 0.01-in. crack, or the D-loads to produce the 0.01-in. crack and the ultimateload as specified below, multiplied by the internal diameter of the pipe in feet.D-load to produce a 0.01-in. crack 1000D-load to produce the
36、ultimate load 1500InternalDesig-natedDiameter,in.Reinforcement, in.2/linear ft of pipe wallWall A Wall B Wall CConcrete Strength, 4000 psi Concrete Strength, 4000 psi Concrete Strength, 4000 psiWallThick-ness,in.CircularReinforcementBEllipticalReinforcementCWallThick-ness,in.CircularReinforcementBEl
37、lipticalReinforcementCWallThick-ness,in.CircularReinforcementCEllipticalReinforcementDInnerCageOuterCageInnerCageOuterCageInnerCageOuterCage12 134 0.07B. . 2 0.07B. . 234 0.07B. .15 178 0.07B. . 214 0.07B. . 3 0.07B. .18 2 0.07B. . . 0.07B212 0.07B. . . 0.07B314 0.07B. . . 0.07B21 214 0.12 . . . 0.1
38、0 234 0.07B. . . 0.07B312 0.07B. . . 0.07B24 212 0.12 . . . 0.11 3 0.07B. . . 0.07B334 0.07B. . . 0.07B27 258 0.15 . . . 0.12 314 0.12 . . . 0.11 4 0.07B. . . 0.07B30 234 0.15 . . . 0.14 312 0.14 . . . 0.12 414 0.07B. . . 0.07B33 278 0.16 . . . 0.15 334 0.15 . . . 0.12 412 0.07B. . . 0.07B36 3 0.14
39、0.08 0.15 4E0.12 0.07 0.12 434E0.07 0.07 0.0842 312 0.16 0.10 0.18 412 0.15 0.09 0.17 514 0.10 0.07 0.1148 4 0.21 0.12 0.23 5 0.18 0.11 0.20 534 0.14 0.08 0.1554 412 0.24 0.15 0.27 512 0.21 0.12 0.24 614 0.17 0.10 0.1960 5 0.30 0.18 0.33 6 0.24 0.15 0.27 634 0.21 0.12 0.2466 512 0.35 0.21 0.39 612 0
40、.31 0.19 0.34 714 0.24 0.15 0.2772 6 0.41 0.24 0.45 7 0.35 0.21 0.39 734 0.30 0.18 0.3378 612 0.45 0.27 0.51 712 0.40 0.24 0.44 814 0.35 0.21 0.3984 7 0.51 0.31 0.57 8 0.45 0.27 0.51 834 0.41 0.24 0.4590 712 0.57 0.34 0.63 812 0.51 0.31 0.57 914 0.48 0.29 0.5396 8 0.62 0.36 0.69 9 0.57 0.34 0.63 934
41、 0.55 0.33 0.60Concrete Strength, 5000 psi102 812 0.76 0.45 InnerCircular0.30 912 0.68 0.41 InnerCircular0.27 1014 0.62 0.36 InnerCircular0.24Plus El-liptical0.45 Plus El-liptical0.41 Plus El-liptical0.36108 9 0.85 0.51 InnerCircular0.34 10 0.76 0.45 InnerCircular0.30 1034 0.70 0.42 InnerCircular0.2
42、7Plus El-liptical0.51 Plus El-liptical0.45 Plus El-liptical0.42114A. . . .A. . . .A. . . .120A. . . .A. . . .A. . . .126A. . . .A. . . .A. . . .132A. . . .A. . . .A. . . .138A. . . .A. . . .A. . . .144A. . . .A. . . .A. . . .AFor modified or special designs see 7.2 or with the permission of the owne
43、r utilize the provisions of Specification C655. Steel areas may be interpolated between thoseshown for variations in diameter, loading, or wall thickness. Pipe over 96 in. in diameter shall have two circular cages or an inner circular plus one elliptical cage.BFor these classes and sizes, the minimu
44、m practical steel reinforcement is specified. The specified ultimate strength of non-reinforced pipe is greater than the minimumspecified strength for the equivalent diameters.CAs an alternative to designs requiring both inner and outer circular cages the reinforcement may be positioned and proporti
45、oned in either of the following manners:An inner circular cage 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 spe
46、cified for the inner cage in the table,An inner and outer cage plus quadrant mats in accordance with Fig. 1 , orAn inner and outer cage plus an elliptical cage in accordance with Fig. 2.DElliptical and quadrant steel must be held in place by means of holding rods, chairs, or other positive means thr
47、oughout the entire casting operation.EAs an alternative, single cage reinforcement may be used. The reinforcement area in square in. per linear foot shall be 0.20 for wall B and 0.16 for wall C.C76113TABLE 3 Design Requirements for Class III Reinforced Concrete PipeANOTE 1See Section 5 for basis of
48、acceptance specified by the owner.The strength test requirements in pounds-force per linear foot of pipe under the three-edge-bearing method shall be either the D-load (test loadexpressed in pounds-force per linear foot per foot of diameter) to produce a 0.01-in. crack, or the D-loads to produce the
49、 0.01-in. crack and the ultimateload as specified below, multiplied by the internal diameter of the pipe in feet.D-load to produce a 0.01-in. crack 1350D-load to produce the ultimate load 2000InternalDesignatedDiameter, in.Reinforcement, in.2/linear ft of pipe wallWall A Wall B Wall CConcrete Strength, 4000 psi Concrete Strength, 4000 psi Concrete Strength, 4000 psiWallThick-nesses,in.CircularReinforcementBEllipticalReinforcementCWallThick-nesses,in.CircularReinforcementBEllipticalReinforcementCWallThick-nesses,in.Circula
