1、Designation: C76 18C76 18aStandard 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 U.S. Department of Defense.1. Scope*1.1 This specification covers reinforced con
3、crete 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 tha
4、t 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 condition and t
5、he 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 reinforced co
6、ncrete 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 C6
7、55).1.3 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers t
8、o Trade (TBT) Committee.2. 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 Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforce
9、mentA1064/A1064M Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for ConcreteC33/C33M Specification for Concrete AggregatesC76M Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe (Metric)C150/C150M Specification for Portland CementC260/C
10、260M Specification for Air-Entraining Admixtures for ConcreteC309 Specification for Liquid Membrane-Forming Compounds for Curing ConcreteC443 Specification for Joints for Concrete Pipe and Manholes, Using Rubber GasketsC494/C494M Specification for Chemical Admixtures for ConcreteC497 Test Methods fo
11、r Concrete Pipe, Manhole Sections, or TileC595/C595M Specification for Blended Hydraulic CementsC618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in ConcreteC655 Specification for Reinforced Concrete D-Load Culvert, Storm Drain, and Sewer PipeC822 Terminology Relating
12、to Concrete Pipe and Related ProductsC989/C989M Specification for Slag Cement for Use in Concrete and MortarsC990 Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint SealantsC1017/C1017M Specification for Chemical Admixtures for Use in Produc
13、ing Flowing Concrete1 This 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 April 1, 2018Oct. 1, 2018. Published April 2018October 2018. Originally appro
14、ved in 1930. Last previous edition approved in 20162018 asC76 - 16.C76 - 18. DOI: 10.1520/C0076-18.10.1520/C0076-18A.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
15、the standards Document Summary page on the ASTM website.This 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
16、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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Ha
17、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1C1116/C1116M Specification for Fiber-Reinforced ConcreteC1602/C1602M Specification for Mixing Water Used in the Production of Hydraulic Cement ConcreteC1628 Specification for Joints for Concrete Gravity Flow Sewer Pipe, Using R
18、ubber Gaskets3. Terminology3.1 DefinitionsFor definitions of terms relating to concrete pipe, see Terminology C822.4. 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
19、 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 alternativebases of acceptance. Independent of the method of acceptance, the pipe shall be designed to meet bo
20、th 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 accorda
21、nce 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 finishedpi
22、pe 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 b
23、e 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; byTABLE 1 Design Requirements for Class I Reinforced Concrete PipeANOTE 1See Section 5 for basis of acceptance specified by the owner. The str
24、ength test requirements in pounds-force per linear foot of pipe underthe three-edge-bearing method shall be either the D-load (test load expressed 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 ultimate load as s
25、pecified 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 1200InternalDesignatedDiameter,in.Reinforcement, in.2/linear ft of pipe wallWall A Wall BConcrete Strength, 4000 psi Concrete Strength, 4000 psiWallThickn
26、ess,in.CircularReinforcementB EllipticalReinforcementCWallThickness,in.CircularReinforcementB 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 0.1
27、9 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 CircularPlus Elliptical0.240.38912 0.54 0.32 Inner CircularPlus Elliptical0.210.32108 9 0.68 0.41 Inner CircularPlus Elliptical0.27
28、0.4110 0.60 0.36 Inner CircularPlus Elliptical0.240.36114 A . . . . . . . . . . . . A . . . . . . . . . . . .120 A . . . . . . . . . . . . A . . . . . . . . . . . .126 A . . . . . . . . . . . . A . . . . . . . . . . . .132 A . . . . . . . . . . . . A . . . . . . . . . . . .138 A . . . . . . . . . .
29、. . A . . . . . . . . . . . .144 A . . . . . . . . . . . . A . . . . . . . . . . . .AFor 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 wa
30、ll thickness. Pipe over 96 in. 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
31、 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 specified for the inner cage in the table,An inner and outer
32、 cage plus quadrant mats in accordance with Fig. 1, orAn inner and outer cage plus an elliptical 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.C76 18a2an absorption
33、 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 agreed upon by the owner an
34、d manufacturer, any portion or any combination of the tests itemized in 5.1.1 or 5.1.2may 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. Materials6.1 Reinforced ConcreteThe re
35、inforced concrete shall consist of cementitious materials; mineral aggregates; admixtures, ifused; and water in which steel has been embedded in such a manner that the steel and concrete act together.TABLE 2 Design Requirements for Class II Reinforced Concrete PipeANOTE 1See Section 5 for basis of a
36、cceptance specified by the owner. The strength test requirements in pounds-force per linear foot of pipe underthe three-edge-bearing method shall be either the D-load (test load expressed in pounds-force per linear foot per foot of diameter) to produce a 0.01-in.crack, or the D-loads to produce the
37、0.01-in. crack and the ultimate load 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 ultimate load 1500InternalDesig-natedDiameter,in.Reinforcement, in.2/linear ft of pipe wallWall A Wall B Wall CConcrete Streng
38、th, 4000 psi Concrete Strength, 4000 psi Concrete Strength, 4000 psiWallThick-ness,in.CircularReinforcementC EllipticalReinforcementDWallThick-ness,in.CircularReinforcementC EllipticalReinforcementDWallThick-ness,in.CircularReinforcementC EllipticalReinforcementDInnerCageOuterCageInnerCageOuterCageI
39、nnerCageOuterCage12 134 0.07B . . . . . . 2 0.07B . . . . . . 234 0.07B . . . . . .15 178 0.07B . . . . . . 214 0.07B . . . . . . 3 0.07B . . . . . .18 2 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
40、.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 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
41、.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 0.31 0.19 0.34 714 0.24 0.15 0.2772 6 0.41 0.24 0.45 7
42、 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 0.55 0.33 0.60Concrete Strength, 5000 psi102 812 0.7
43、6 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 InnerCircular0.27Plus El-liptical0.51 Plus El-liptical0.45 Plus El-li
44、ptical0.42114 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .120 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .126 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .132 A . . . . . . . . . . . . A . . . . . . . .
45、 . . . . A . . . . . . . . . . . .138 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .144 A . . . . . . . . . . . . A . . . . . . . . . . . . A . . . . . . . . . . . .AFor modified or special designs see 7.2 or with the permission of the owner utilize the provisions of S
46、pecification 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 minimum practical steel reinforceme
47、nt 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 proportioned in either of the followi
48、ng 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 specified for the inner cage in
49、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 throughout 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.C76 18a36.2 Cementitious materials:6.2.1 CementCement shall c
