AASHTO M 252-08 Standard Specification for Corrugated Polyethylene Drainage Pipe

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1、StandardSpecificationforCorrugatedPolyethyleneDrainagePipeAASHTODesignation:M252-081.SCOPE1.1.Thisspecificationcoverstherequirementsandmethodsoftestforcorrugatedpolyethylene(PE)pipe,couplingsandfittingsforuseinsubsurfacedrainagesystems,stormsewers,andinsurfacedr

2、ainage(culverts),wheresoilsupportisgiventothepipe’sflexiblewallsinallapplications.1.1.1.Nominalsizesof75to250mmareincluded.1.1.2.Materials,dimensions,pipestiffness,environmentalstress-crackresistance,perforations,joiningsystemsandformsofmarkingarespecified.Note1

3、—Whenpolyethylenepipeistobeusedinlocationswheretheendsmaybeexposed,considerationshouldbegiventocombustibilityofthepolyethyleneandthedeterioratingeffectsofprolongedexposuretoultravioletradiation.1.2.Thefollowingprecautionarycaveatpertainsonlytothetestmethodportio

4、n,Section9.4ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationsprio

5、rtouse.2.REFERENCEDDOCUMENTS2.1.AASHTOStandard:

6、tionforPolyethylenePlasticsPipeandFittingsMaterials

7、Parallel-PlateLoading

8、rdancewiththedefinitionsgiveninASTMD883andASTMF412unlessotherwisespecified.3.2.crack—Anybreakorsplitthatextendsthroughthewall.3.3.crease—Anirrecoverableindentation;ge