1、Designation: C655 12aStandard Specification forReinforced Concrete D-Load Culvert, Storm Drain, andSewer Pipe1This standard is issued under the fixed designation C655; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t 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 covers reinforced con
3、crete pipe de-signed for specific D-loads and intended to be used for theconveyance of sewage, industrial wastes, and storm water andfor the construction of culverts.1.2 Acomplete metric companion to Specification C655 hasbeen developedSpecification C655M; therefore, no metricequivalents are present
4、ed in this specification.NOTE 1Experience has shown that the successful performance of thisproduct depends upon the proper selection of the pipe strength, the type ofbedding and backfill, the care that the installation conforms to theconstruction specifications, and provision for adequate inspection
5、 at theconstruction site. This specification does not include requirements forbedding, backfill, the relationship between field load conditions and thestrength designation of pipe, or durability under unusual environmentalconditions. These requirements should be included in the project specifi-catio
6、n.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 Low-Alloy Steel Deformedand Plain Bars for Concrete ReinforcementA1064/A1064M Specif
7、ication for Steel Wire and WeldedWire Reinforcement, Plain and Deformed, for ConcreteC33 Specification for Concrete AggregatesC150 Specification for Portland CementC497 Test Methods for Concrete Pipe, Manhole Sections, orTileC595 Specification for Blended Hydraulic CementsC618 Specification for Coal
8、 Fly Ash and Raw or CalcinedNatural Pozzolan for Use in ConcreteC822 Terminology Relating to Concrete Pipe and RelatedProductsC989 Specification for Slag Cement for Use in Concrete andMortarsC1116 Specification for Fiber-Reinforced Concrete andShotcreteE105 Practice for Probability Sampling of Mater
9、ials3. Terminology3.1 DefinitionsFor definitions of terms relating to concretepipe, see Terminology C822.4. Basis of Acceptance4.1 The acceptability of the pipe design shall be determinedin accordance with Section 9. After the pipe design has beenaccepted, or if the pipe design has been accepted pre
10、viously inaccordance with Section 9, the owner may select and haveapplied the basis of acceptance described in either 4.1.1 or4.1.2. Unless designated by the owner at the time of, or beforeplacing an order, either basis of acceptance shall be permitted.4.1.1 Acceptance on the Basis of Pipe Load and
11、MaterialTests and Inspection of Manufactured Pipe for DefectsDetermine in accordance with Sections 5, 6, 8, and 10.NOTE 2It is necessary that samples be selected at random. Forguidance see Practice E105.4.1.2 Acceptance on the Basis of Concrete Compression andMaterials Tests and Inspection of Manufa
12、ctured Pipe forDefectsDetermine in accordance with Sections 5, 6, 8 and 11.4.2 Age for AcceptancePipe shall be considered ready foracceptance when they conform to the requirements.5. Design and Manufacturing Data5.1 The manufacturer shall provide the following informa-tion regarding the pipe unless
13、waived by the owner:5.1.1 Basis of acceptance.5.1.2 Pipe design strength.5.1.3 Physical CharacteristicsDiameter, wall thickness,laying length, and joint details.1This specification is under the jurisdiction of ASTM Committee C13 onConcrete Pipe and is the direct responsibility of Subcommittee C13.02
14、 onReinforced Sewer and Culvert Pipe.Current edition approved Sept. 15, 2012. Published October 2012. Originallyapproved in 1970. Last previous edition approved in 2012 as C655 121. DOI:10.1520/C0655-12A.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Se
15、rvice at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.1.4 Design concrete strength; minimum f c
16、equals 4000psi.5.1.5 Admixtures.5.1.6 Reinforcement:5.1.6.1 Type of reinforcement, applicable reinforcementspecification, and grade.5.1.6.2 Placement, placement tolerances, diameter, spacingand cross-sectional area of circumferential, longitudinal, andspecial reinforcement.5.1.7 Manufacturing and cu
17、ring process.6. Materials and Manufacture6.1 Materials:6.1.1 Reinforced ConcreteThe reinforced concrete shallconsist of cementitious materials, mineral aggregates, andwater, in which steel has been embedded in such a manner thatthe steel and concrete act together.6.1.2 Cementitious Materials:6.1.2.1
18、 CementCement shall conform to the requirementsfor portland cement of Specification C150 or shall be portlandblast-furnace slag cement or portland-pozzolan cement con-forming to the requirements of Specification C595, except thatthe pozzolan constituent in the Type IP portland pozzolancement shall b
19、e fly ash.6.1.2.2 Fly AshFly ash shall conform to the requirementsof Specification C618, Class F or Class C.6.1.2.3 Ground Granulated Blast-Furnace Slag (GGBFS)GGBFS shall conform to the requirements of Grade 100 or 120of Specification C989.6.1.2.4 Allowable Combinations of CementitiousMaterialsThe
20、combination of cementitious materials used inthe cement shall be one of the following:(1) Portland cement only,(2) Portland blast furnace slag cement only,(3) Slag modified Portland cement only,(4) Portland pozzolan cement only,(5) A combination of portland cement and fly ash,(6) A combination of po
21、rtland cement and ground granu-lated blast-furnace slag,(7) A combination of portland cement, ground granulatedblast-furnace slag (not to exceed 25% of the total cementitiousweight), and fly ash (not to exceed 25% of the total cementi-tious weight), or(8) Acombination of portland pozzolan cement and
22、 fly ash.6.1.3 AggregatesAggregates shall conform to the require-ments of Specification C33, except that the requirement forgradation shall not apply.6.1.4 Admixtures and BlendsAdmixtures and blends shallbe allowed to be used unless prohibited by the owner.6.1.5 Steel ReinforcementReinforcement shal
23、l conform tothe requirements of Specification A1064/A1064M, or barsconforming to Specification A36/A36M, Specification A615/A615M Grade 40 or 60, or Specification A706/A706M Grade60.6.2 Manufacture:6.2.1 MixtureThe aggregates shall be sized, graded,proportioned, and mixed with such proportions of ce
24、mentitiousmaterials and water as will produce a homogeneous concretemixture of such quality that the pipe will conform to the testand design requirements of this specification.All concrete shallhave a water-cementitious materials ratio not exceeding 0.53by weight. Cementitious materials shall be as
25、specified in 6.1and shall be added to the mix in a proportion not less than 470lb/yd3unless mix designs with a lower cementitious materialcontent demonstrate that the quality and performance of thepipe meet the requirements of this specification.6.2.2 Reinforcement:6.2.2.1 PlacementReinforcement sha
26、ll be placed as indi-cated in 5.1.6.2, subject to the tolerances given in 8.2.2.Minimum design protective cover of concrete over the circum-ferential reinforcement in the barrel of the pipe shall be 1 in.for wall thicknesses of 212 in. or greater, and34 in. for wallthicknesses less than 212 in., sub
27、ject to the tolerances given in8.2.2.6.2.2.2 SplicesThe strength of the pipe shall not beadversely affected by the splice.6.2.2.3 SpacingThe spacing center-to-center of adjacentrings of circumferential reinforcement in a cage shall notexceed 4 in. for pipe with a wall thickness up to and including4
28、in. and shall not exceed the wall thickness or 6 in., whicheveris smaller, for larger pipe.6.2.3 JointsThe joints shall be of such design and the endsof the concrete pipe sections so formed that when the sectionsare laid together they will make a continuous line of pipe witha smooth interior free of
29、 appreciable irregularities in the flowline, all compatible with the permissible variations given inSection 8.6.2.4 Lift HolesWhen agreed upon by the owner, lift eyesor holes shall be allowed to be provided in each pipe for thepurpose of handling.6.3 Synthetic Fibers Collated fibrillated virgin poly
30、pro-pylene fibers shall be allowed to be used, at the manufacturersoption, in concrete pipe as a nonstructural manufacturingmaterial. Only Type III synthetic fibers designed and manufac-tured specifically for use in concrete and conforming to therequirements of Specification C1116 shall be accepted.
31、7. Physical Requirements7.1 StrengthThe design strength designation of the pipeshall be the D-load to produce the 0.01-in. crack when tested inaccordance with Test Methods C497. The relationship ofultimate strength D-load to the design strength D-load shall bedetermined using a factor of 1.5 for des
32、ign strength designa-tions up to 2000 lbf/ftft of diameter, a factor varying in linearproportions from 1.5 to 1.25 for design strength designationsfrom 2000 through 3000, and a factor of 1.25 for designstrength designations in excess of 3000.NOTE 3As used in this specification, the 0.01-in. crack is
33、 a testcriterion for pipe tested in three-edge bearing test and is not intended asan indication of overstressed or failed pipe under installed conditions.NOTE 4Ultimate strength of concrete pipe in the buried condition isdependent on varying soil bedding factors and varying failure modes andshall no
34、t necessarily have a relationship to the ultimate strength as definedunder three-edge bearing conditions.7.2 Test Equipment and FacilitiesThe manufacturer shallfurnish without charge all samples, facilities, and personnelnecessary to carry out the tests required by this specification.C655 12a27.3 Pi
35、pe Load Tests The tests for crushing strength, whenrequired, shall be made in accordance with Test Methods C497.When alternative methods of load testing are specified, testsshall be made in accordance with the alternative requirements.8. Dimensions and Permissible Variations8.1 Standard DiametersPip
36、e shall be manufactured in thestandard inside diameters listed in Table 1.NOTE 5Diameters other than those shown in Table 1 and diameterslarger than 144 in. are possibly available. When such sizes are required,the owner should contact the manufacturers in the area.8.2 Design TolerancesExcept as spec
37、ified in this section,all permissible design tolerances shall be given in Section 5.8.2.1 Internal DiameterThe internal diameter of 12through 24-in. pipe shall not vary more than 2 % of the designdiameter for 12-in. pipe and 112 % for 24-in. pipe withintermediate size variation being a linear scale
38、between 2 and112 %. The internal diameter of sizes 27-in. and larger shallnot vary by more than 1 % of the design diameter or 638-in.,whichever is greater. These diameter requirements are based onthe average of four diameter measurements at a distance of12-in. from the end of the bell or spigot of t
39、he pipe. Diameterverification shall be made on the number of pipe selected fortest per Section 11.8.2.2 Reinforcement Placement TolerancesThe maximumvariation in the nominal position of the reinforcement shall be610 % of the wall thickness or 658 in., whichever is greater.Pipe having variations in t
40、he position of the reinforcementexceeding those specified above shall be accepted if thethree-edge-bearing strength requirements obtained on a repre-sentative sample are met. In no case, however, shall the coverover the circumferential reinforcement be less than58 in.8.2.3 Length of Two Opposite Sid
41、esVariations in thelaying length of two opposite sides of pipe shall not be morethan14 in. for all sizes through 24-in. internal diameter, and notmore than18 in./ft of internal diameter for all larger sizes, witha maximum of58 in. in any pipe through 84-in. internaldiameter, and a maximum of34 in. f
42、or 90-in. internal diameteror larger, except where beveled-end pipe for laying on curvesis specified by the owner.8.2.4 Length of PipeThe underrun in length of a section ofpipe shall not be more than18 in./ft with a maximum of12 in.in any length of pipe.8.2.5 Wall Thickness TolerancesThe wall thickn
43、ess shallbe not less than the nominal specified in the design given in5.1.3 by more than 5 % or316 in., whichever is greater. A wallthickness more than that required in the design is not a causefor rejection, except that such pipe shall not be used for thetests required in 7.3.9. Acceptance of Desig
44、n9.1 Acceptance by Tests of SpecimensThree to five repre-sentative specimens, or special test pipe that are shorter thanstandard production pipe, as agreed upon by the owner andmanufacturer, shall be tested to the 0.01-in. crack and toultimate strength and the results recorded. Compute the valuesin
45、9.1.1 and 9.1.2 for both the 0.01-in. crack and the ultimatestrength.9.1.1 Compute the estimated standard deviation, s,byEq 1or Eq 2, which equations yield identical values.s 5 (Xi2 X!2#/n 2 1! (1)s 5 (Xi22 (Xi!2/n#/n 2 1! (2)where:Xi= observed value of the load to produce the 0.01-in. crack(and the
46、 load to develop the ultimate strength),X= average (arithmetic mean) of the values of Xi, andn = number of observed values.9.1.2 Compute the minimum allowable arithmetic mean, Xs,by Eq 3.InEq 3, the value of the estimated standard deviation,s, shall be as calculated by Eq 1 or Eq 2 or equal to 0.07L
47、,whichever is greater.Xs5 L11.07 s (3)where:L = specification limit (specified D-load).9.1.3 The pipe design shall be acceptable if the arithmeticmean Xfor the 0.01-in. crack and ultimate strength is equal toor greater than the computed values of Xs, and if all the testedspecimens meet or exceed the
48、 specification limit, or if all testspecimens meet or exceed the design strength.9.2 Alternative Acceptance MethodThe manufacturershall be allowed to request approval of designs based onempirical evaluations of the strength of the pipe including, butnot limited to, designs based on interpolation bet
49、ween designsapproved in accordance with 9.1, or designs evaluated on thebasis of tests other than the three-edge-bearing test method.Acceptance of design tests need not be performed for eachcontract or order.10. Acceptance of Pipe by Load Testing10.1 Lot SamplingWhen the acceptance is to be in accor-dance with 4.1.1, randomly select from the lot a sample of thesize listed in Table 2 and test each specimen to the 0.01-in.crack. When all specimen test strengths are greater than theminimum design strength D-load, th
