1、Designation: A760/A760M 10American Association State Highwayand Transportation Officials StandardAASHTO No. M 36/M 36MStandard Specification forCorrugated Steel Pipe, Metallic-Coated for Sewers andDrains1This standard is issued under the fixed designation A760/A760M; the number immediately following
2、 the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved f
3、or use by agencies of the Department of Defense.1. Scope1.1 This specification covers corrugated steel pipe intendedfor use for storm water drainage, underdrains, the constructionof culverts, and similar uses. Pipe covered by this specificationis not normally used for the conveyance of sanitary orin
4、dustrial wastes. The steel sheet used in fabrication of the pipehas a protective metallic coating of zinc (galvanizing), alumi-num, 55 % aluminum-zinc alloy, or zinc-5 % aluminum-mischmetal alloy.1.1.1 Steel sheet with zinc and aramid fiber compositecoating may be specified for fabrication of pipe.
5、Pipe madefrom sheet with this composite coating is always furnishedwith an asphalt coating. Therefore, the requirements in thisspecification should be considered as applying to a semifin-ished pipe; the finished pipe must include provisions ofSpecification A849.NOTE 1Pipe fabricated with zinc and ar
6、amid fiber composite coatedsheet and asphalt post coating may be used for sanitary sewers andindustrial applications. Petroleum products or similar materials in thesewer effluent may affect the performance of the asphalt coating.1.2 The several different metallic coatings may not provideequal protec
7、tion of the base metal against corrosion or abrasionin all environments, or both. Some environments may be sosevere that none of the metallic coatings included in thisspecification will provide adequate protection. Additional pro-tection for corrugated steel pipe can be provided by use ofcoatings ap
8、plied after fabrication of the pipe as described inSpecificationA849, or by use of polymer precoated corrugatedsteel pipe as described in Specification A762/A762M.1.3 Section 9 is intended to be applied to corrugated steelpipe joints. The several different types of corrugated steel pipejoints provid
9、e various qualities. This specification is notintended for routine quality control testing or in-field accep-tance testing, but is intended to establish performance limits ofthe pipe joints, as well as the test requirements and testmethods for the joints as described herein.1.4 This specification do
10、es not include requirements forbedding, backfill, or the relationship between earth cover loadand sheet thickness of the pipe. Experience has shown that thesuccessful performance of this product depends upon theproper selection of sheet thickness, type of bedding andbackfill, controlled manufacture
11、in the plant, and care in theinstallation. The installation procedure is described in PracticeA798/A798M.1.5 This specification is applicable to orders in eitherinch-pound units asA760 or in SI units asA760M. Inch-poundunits and SI units are not necessarily equivalent. SI units areshown in brackets
12、in the text for clarity, but they are theapplicable values when the material is ordered to A760M.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA153/A153M Specification for Zinc Coating (Hot-Dip) on
13、Iron and Steel HardwareA307 Specification for Carbon Steel Bolts and Studs, 60000 PSI Tensile StrengthA428/A428M Test Method forWeight Mass of Coating onAluminum-Coated Iron or Steel ArticlesA449 Specification for Hex Cap Screws, Bolts and Studs,Steel, Heat Treated, 120/105/90 ksi Minimum TensileStr
14、ength, General UseA563 Specification for Carbon and Alloy Steel NutsA563M Specification for Carbon and Alloy Steel Nuts(Metric)A742/A742M Specification for Steel Sheet, MetallicCoated and Polymer Precoated for Corrugated Steel PipeA762/A762M Specification for Corrugated Steel Pipe,Polymer Precoated
15、for Sewers and Drains1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.17 on Corrugated Steel Pipe Specifications.Current edition approved Sept. 1, 2010. Published October 2010. Originally
16、approved in 1979. Last previous edition approved in 2009 as A760/A760M - 09.DOI: 10.1520/A0760_A0760M-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standar
17、ds Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.A780 Practice for Repair of Damaged and Uncoated Areasof Hot-Dip Galvanized CoatingsA796/A796M Practice for Structural Design of CorrugatedSt
18、eel Pipe, Pipe-Arches, and Arches for Storm and Sani-tary Sewers and Other Buried ApplicationsA798/A798M Practice for Installing Factory-Made Corru-gated Steel Pipe for Sewers and Other ApplicationsA849 Specification for Post-Applied Coatings, Pavings, andLinings for Corrugated Steel Sewer and Drain
19、age PipeA885/A885M Specification for Steel Sheet, Zinc and Ara-mid Fiber Composite Coated for Corrugated Steel Sewer,Culvert, and Underdrain Pipe3A929/A929M Specification for Steel Sheet, Metallic-Coated by the Hot-Dip Process for Corrugated Steel PipeB633 Specification for Electrodeposited Coatings
20、 of Zincon Iron and SteelB695 Specification for Coatings of Zinc Mechanically De-posited on Iron and SteelC1619 Specification for Elastomeric Seals for Joining Con-crete StructuresD1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberF568M Specification for Carbon and Alloy Ste
21、el ExternallyThreaded Metric Fasteners (Metric)2.2 AASHTO Standards:4T241 Test for Helical Continuous Welded Seam CorrugatedSteel PipeT249 Test for Helical Lock Seam Corrugated Pipe3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 fabricatorthe producer of the pipe.3.1.2 manufac
22、turerthe producer of the sheet.3.1.3 minimized coating structurea coating characterizedby a finer metallurgical coating structure obtained by a treat-ment designed to restrict the formation of the normal coarse-grain structure formed during solidification of the Zn-5Al-MMalloy coating.3.1.4 purchase
23、rthe purchaser of the finished product.3.1.5 regular coating structurethe normal coating struc-ture resulting from unrestricted grain growth during normalsolidification of the Zn-5 Al-MM alloy coating.3.2 Abbreviations:3.2.1 55 Al-Zn55 % aluminum-zinc.3.2.2 MMmischmetal.3.2.3 Zn-5 Al-MMzinc-5 % alum
24、inum-mischmetal.4. Classification4.1 The corrugated steel pipe covered by this specification isclassified as follows:4.1.1 Type IThis pipe shall have a full circular crosssection, with a single thickness of corrugated sheet, fabricatedwith annular (circumferential) or helical corrugations.4.1.2 Type
25、 IAThis pipe shall have a full circular crosssection, with an outer shell of corrugated sheet and an innerliner of smooth (uncorrugated) sheet, fabricated with helicalcorrugations and lock seams.4.1.3 Type IRThis pipe shall have a full circular crosssection with a single thickness of smooth sheet, f
26、abricated withhelical ribs projecting outwardly.4.1.4 Type ISThis pipe shall have a full circular crosssection with a single thickness of smooth sheet, fabricated withhelical ribs projecting outwardly, and shall also have metallic-coated steel inserts placed in the ribs so that the inside surfaceof
27、the pipe is essentially smooth.4.1.5 Type IIThis pipe shall be a Type I pipe which hasbeen reformed into a pipe-arch, having an approximately flatbottom.4.1.6 Type IIAThis pipe shall be a Type IApipe which hasbeen reformed into a pipe-arch, having an approximately flatbottom.4.1.7 Type IIRThis pipe
28、shall be a Type IR pipe whichhas been reformed into a pipe-arch, having an approximatelyflat bottom.4.1.8 Type IISThis pipe shall be a Type IS pipe which hasbeen reformed into a pipe-arch, having an approximately flatbottom.4.1.9 Type IIIThis pipe, intended for use as underdrains orfor underground d
29、isposal of water, shall be a Type I pipe whichhas been perforated to permit the inflow or outflow of water.4.1.10 Type IIIAThis pipe, intended for use as underd-rains, shall consist of a semicircular cross section, having asmooth (uncorrugated) bottom with a corrugated top shield.4.2 Perforations in
30、 Type III pipe are included in threeclasses as described in 8.3.2.4.3 Zn-5 Al-MM alloy-coated material is available in twocoating classes, or structures, as follows:4.3.1 Class AMinimized coating structure.4.3.2 Class BRegular coating structure.5. Ordering Information5.1 Orders for material to this
31、specification shall include thefollowing information as necessary, to adequately describe thedesired product.5.1.1 Name of material (corrugated steel pipe),5.1.2 Type of metallic coating (zinc, aluminum, 55 Al-Znalloy, Zn-5 Al-MM alloy, or zinc and aramid fiber compositecoating (see 6.1).5.1.2.1 For
32、 Zn-5A1-MM coating, the class coating structure(Class A minimized, etc.) (4.3).5.1.3 ASTM designation and year of issue, as A760-_for inch-pound units or as A760M-_ for SI units.5.1.4 Type of pipe (4.1),5.1.5 Diameter of circular pipe (Table 1), or span and rise ofpipe-arch section (Tables 2-9),5.1.
33、6 Length, either total length or length of each piece andnumber of pieces,5.1.7 Description of corrugations (7.2),5.1.8 Sheet thickness (8.1.2),5.1.9 For Type I and Type II pipe, the pipe fabricationmethod, whether with annular corrugations or helical corruga-tions (see 7.1.1),3Withdrawn. The last a
34、pproved version of this historical standard is referencedon www.astm.org.4Available from American Association of State Highway and TransportationOfficials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,http:/www.transportation.org.A760/A760M 102NOTE 2Pipe with annular corrugations
35、 with spot welded or rivetedseams is designed by different criteria compared to pipe with helicalcorrugations. Pipe with annular corrugations must consider seam strength.Therefore, consideration of the method of fabrication is important whenpipe is installed under certain conditions of loading.5.1.1
36、0 For Types IS and IIS pipe, the type of insert required,whether from metallic coated steel sheet or from polymer-precoated metallic-coated steel sheet (see 6.6 and 8.1.2).NOTE 3Aluminized steel Type 2 inserts are not available with apolymer coating5.1.11 When zinc and aramid fiber composite coated
37、sheetis used for fabrication of pipe, the type of asphalt coating (1.1.1and 8.5),NOTE 4See Specification A849 for additional ordering informationTABLE 1 Pipe SizesNominalInsideDiameterCorrugation SizesARibbed PipeMinimumOutsideCircumferenceBin. mm112 by14 in.38by6.5mm223 by12 in.68by13mm3by1in.75by2
38、5mm5by1in.125 by 25 mm34 by34 by 712 in.19by19by190mm34 by1by1112 in.19by25by292mm34 by1by812 in.19by25by216mmin. mm4 100 X 11.4 2646 150 X 17.7 4418 200 X 24.0 59810 250 X 30.2 75512 300 X X 36.5 91215 375 X X XC46.0 114818 450 X X X X X 55.4 138321 500 X X X X 64.8 162024 600 X X X X 74.2 185427 6
39、75 X X X X 83.6 209130 750 X X X X 93.1 248333 825 X X X X 102.5 256136 900 X X X X X X 111.9 279742 1050 X X X X X X 130.8 326948 1200 X X X X X X 149.6 373954 1350 X X X X X X 168.4 420960 1500 X X X X X X 187.0 467566 1650 X X X X X X 205.7 514272 1800 X X X X X X 224.3 560978 1950 X X X X X X 24
40、3.0 607584 2100 X X X X X X 261.7 654290 2250 X X X X X 280.3 700896 2400 X X X X X 299.0 7475102 2550 X X X X X 317.6 7941108 2700 X X X X X 336.3 8408114 2850 X X X X 355.0 8874120 3000 X X X X 373.6 9341126 3150 X X X 392.3 9807132 3300 X X X 410.9 10274138 3450 X X X 429.6 10740144 3600 X X X 44
41、8.3 11207AAn“ X” indicates standard corrugation sizes for each nominal diameter of pipe.BMeasured in valley of annular corrugations. Not applicable to helically corrugated pipe.CAdditional size for Type IS pipe.TABLE 2 Pipe Arch Requirements223 by12-in. Corrugations(A760)Pipe ArchSize, in.Equivalent
42、Diameter,in.Span,Ain.Rise,Ain.MinimumCornerRadius, in.MaximumB,Bin.17 by 13 15 17 13 3 51421 by 15 18 21 15 3 624 by 18 21 24 18 3 71428 by 20 24 28 20 3 835 by 24 30 35 24 3 91242 by 29 36 42 29 312 101249 by 33 42 49 33 4 111257 by 38 48 57 38 5 131264 by 43 54 64 43 6 1571 by 47 60 71 47 7 161277
43、 by 52 66 77 52 8 1883 by 57 72 83 57 9 20AA tolerance of 61 in. or 2 % of equivalent diameter, whichever is greater, ispermissible in span and rise.BB is defined as the vertical dimension from a horizontal line across the widestportion of the arch to the lowest portion of the base.TABLE 3 Pipe Arch
44、 Requirements68 by 13-mmCorrugations A760MPipe ArchSize, mmEquivalentDiameter,mmSpan,AmmRise,AmmMinimumCornerRadius, mmMaximumB,Bmm430 by 330 375 430 330 75 135530 by 380 450 530 380 75 155610 by 460 525 610 460 75 185710 by 510 600 710 510 75 205780 by 560 675 780 560 75 225885 by 610 750 870 630 7
45、5 240970 by 690 825 970 690 75 2551060 by 740 900 1060 740 90 2651240 by 840 1050 1240 840 100 2901440 by 970 1200 1440 970 130 3451620 by 1100 1350 1620 1100 155 3801800 by 1200 1500 1800 1200 180 4201950 by 1320 1650 1950 1320 205 4602100 by 1450 1800 2100 1450 230 510AA tolerance of 625 mm or 2 %
46、 of equivalent diameter, whichever is greater, ispermissible in span and rise.BB is defined as the vertical dimension from a horizontal line across the widestportion of the arch to the lowest portion of the base.A760/A760M 103appropriate to post-coatings on pipe.5.1.12 Joining systems, including the
47、 type of joint from 9.2and gasket, if required (If no joining system is specified, thefabricator shall select a soil tight joining system.),5.1.13 For Type III pipe, class of perforations, if other thanClass 1 (8.3.2),5.1.14 Certification, if required (14.1), and5.1.15 Special requirements.6. Materi
48、als and Manufacture6.1 Steel Sheet for PipeAll pipe fabricated under thisspecification shall be formed from zinc-coated sheet,aluminum-coated sheet, 55 % aluminum-zinc alloy-coatedsheet, zinc-5 % aluminum-mischmetal alloy-coated sheet allconforming to Specification A929/A929M, or zinc and aramidfibe
49、r composite coated sheet conforming to SpecificationA885/A885M. If the type of metallic coating is not stated in theorder, zinc-coated sheet conforming to Specification A929/A929M shall be used. All pipe furnished on the order shallhave the same metallic coating, unless otherwise specified.6.2 Steel Sheet for Coupling BandsThe sheet used infabricating coupling bands shall have the same coating andshall conform to the same specification listed in 6.1 as that usedfor fabrication of the pipe furnished unde
