1、Designation: C76 12aC76 13Standard 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 year of last
2、revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon () 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 reinforced concrete
3、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 concrete pipe that conf
4、orm 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 condition and the str
5、ength 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 reinforced concrete
6、 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 (Specification C655).2.
7、 Referenced Documents2.1 ASTM Standards:2A36/A36M Specification for Carbon Structural SteelA615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete ReinforcementA706/A706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete ReinforcementA1064/A1064M Specifica
8、tion for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for ConcreteC33 Specification for Concrete AggregatesC76M Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe (Metric)C150 Specification for Portland CementC260 Specification for Air-Entraining Admix
9、tures for ConcreteC309 Specification for Liquid Membrane-Forming Compounds for Curing 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
10、 and Raw or Calcined Natural Pozzolan for Use in ConcreteC655 Specification for Reinforced 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 f
11、or 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 Terminology C822.1 This specification is under the jurisdiction of ASTM Committee C13 on Con
12、crete Pipe and is the direct responsibility of Subcommittee C13.02 on Reinforced Sewerand Culvert Pipe.Current edition approved Sept. 15, 2012Jan. 15, 2013. Published October 2012February 2013. Originally approved in 1930. Last previous edition approved in 2012 asC76 12.C76 12A. DOI: 10.1520/C0076-1
13、2A.10.1520/C0076-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and
14、 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 users consult prior editions as appropriate. In all cases only t
15、he 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 States14. Classification4.1 Pipe manufactured in accordance with this specification shall be of
16、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 before placing an order, there are two separate and alternativebas
17、es 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, Material Tests, and Inspection of Manufactured Pipe for VisualDef
18、ects 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 required in 6.2, 6.3, 6.5,and 6.6; by an absorption test of the co
19、ncrete 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 Tests and Inspection of Manufactured Pipe for Defects and ImperfectionsAccep
20、tability 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 concrete cylinders; byan absorption test of the concrete from the
21、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 agreed upon by the owner and manufacturer, any portion or
22、any combination of the tests itemized in 5.1.1 or 5.1.2may form the basis of acceptance.TABLE 1 Design 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
23、 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 0.01-in. crack and the ultimateload as specified below, multiplied by the internal diameter of the pipe in feet.D
24、-load to produce a 0.01-in. crack 800D-load to produce the ultimate load 1200InternalDesignatedDiameter,in.Reinforcement, in.2/linear ft of pipe wallWall A Wall BConcrete Strength, 4000 psi Concrete Strength, 4000 psiWallThickness,in.CircularReinforcementB EllipticalReinforcementCWallThickness,in.Ci
25、rcularReinforcementB EllipticalReinforcementCInnerCageOuterCageInnerCageOuterCage60 5 0.24 0.15 0.27 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
26、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 CircularPlus 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 Elliptical0.240.36114 A . . . . . . .
27、 . . . . . A . . . . . . . . . . . .120 A . . . . . . . . . . . . A . . . . . . . . . . . .126 A . . . . . . . . . . . . A . . . . . . . . . . . .132 A . . . . . . . . . . . . A . . . . . . . . . . . .138 A . . . . . . . . . . . . A . . . . . . . . . . . .144 A . . . . . . . . . . . . A . . . . . .
28、. . . . . .A For 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
29、 or an inner circular plus one elliptical cage.B As 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
30、 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 cage plus quadrant mats in accordance with Fig. 1, orAn inner and oute
31、r cage plus an elliptical cage in accordance with Fig. 2.C Elliptical and quadrant steel must be held in place by means of holding rods, chairs, or other positive means throughout the entire casting operation.C76 1325.2 Age for AcceptancePipe shall be considered ready for acceptance when it conforms
32、 to the requirements 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 combinati
33、on thereof,and water 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 supplementa
34、ry cementing materials 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 eith
35、er 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 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-
36、load to produce the 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.CircularReinforcementB EllipticalReinforcementCWallThick-ness,in.Cir
37、cularReinforcementB EllipticalReinforcementCWallThick-ness,in.CircularReinforcementC EllipticalReinforcementDInnerCageOuterCageInnerCageOuterCageInnerCageOuterCage12 134 0.07B . . . . . . 2 0.07B . . . . . . 234 0.07B . . . . . .15 178 0.07B . . . . . . 214 0.07B . . . . . . 3 0.07B . . . . . .18 2
38、0.07B . . . 0.07B 212 0.07B . . . 0.07B 314 0.07B . . . 0.07B21 214 0.12 . . . 0.10 234 0.07B . . . 0.07B 312 0.07B . . . 0.07B24 212 0.12 . . . 0.11 3 0.07B . . . 0.07B 334 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
39、0.07B . . . 0.07B33 278 0.16 . . . 0.15 334 0.15 . . . 0.12 412 0.07B . . . 0.07B36 3 0.14 0.08 0.15 4E 0.12 0.07 0.12 434E 0.07 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 0.1
40、7 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 0.31 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
41、 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 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
42、 9 0.85 0.51 InnerCircular0.34 10 0.76 0.45 InnerCircular0.30 1034 0.70 0.42 InnerCircular0.27Plus El-liptical0.51 Plus El-liptical0.45 Plus El-liptical0.42114 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .120 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . .
43、 . . . . . . . . .126 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .132 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .138 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .144 A . . . . . . . . . . . . A . . . .
44、 . . . . . . . . A . . . . . . . . . . . .A For 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 diamete
45、r shall have two circular cages or an inner circular plus one elliptical cage.B For these classes and sizes, the minimum practical steel reinforcement is specified. The specified ultimate strength of non-reinforced pipe is greater than the minimumspecified strength for the equivalent diameters.C As
46、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 than that specified for the outer
47、 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 elliptical cage in accordance with F
48、ig. 2.D Elliptical and quadrant steel must be held in place by means of holding rods, chairs, or other positive means throughout the entire casting operation.E As 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
49、0.16 for wall C.C76 1336.2 Cementitious materials:6.2.1 CementCement shall conform to the requirements of Specification C150, or shall be portland blast-furnace slag cement,or slag modified portland cement, or portland-pozzolan cement conforming to the requirements of Specification C595, except thatthe pozzolan constituent in the Type IP portland-pozzolan cement shall be fly ash.TABLE 3 Design Requirements for Class III Reinforced Concrete PipeANOTE 1See Section 5 for basis of acceptance specified by the owner.The s
