Designation:C1818−15StandardSpecificationforSyntheticFiberReinforcedConcreteCulvert,StormDrain,andSewerPipe1ThisstandardisissuedunderthefixeddesignationC1818;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverssyntheticfiberreinforcedcon-cretepipe(Syn-FRCP)ofinternaldiameters12-48in.,in-tendedtobeusedfortheconveyanceofsewage,industrialwastes,andstormwaterandfortheconstructionofculverts.NOTE1—Experiencehasshownthatthesuccessfulperformanceofthisproductdependsupontheproperselectionofthepipestrength,thetypeofbeddingandbackfill,thecarethattheinstallationconformstotheconstructionspecifications,andprovisionforadequateinspectionattheconstructionsite.Thisspecificationdoesnotincluderequirementsforbedding,backfill,therelationshipbetweenfieldloadconditionsandthestrengthdesignationofpipe,ordurabilityunderunusualenvironmentalconditions.Theserequirementsshouldbeincludedintheprojectspecifi-cation.NOTE2—Thisproductisarigidpipeanditdoesnotdependupondeflection(pipestiffness)foradditionalsupportfromthesoil.NOTE3—Thisstandardrequireslong-termtestingofSyn-FRCPinaccordancewithSection9thatgoesaboveandbeyondwhatistypicallyrequiredforsteelreinforcedconcretepipe,inordertoevaluatethelong-termmaterialstrengthofthefiber-concretematrix.1.2Units—Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.2.ReferencedDocuments2.1ASTMStandards:2C33/C33MSpecificationforConcreteAggregatesC150/C150MSpecificationforPortlandCementC260/C260MSpecificationforAir-EntrainingAdmixturesforConcreteC309SpecificationforLiquidMembrane-FormingCom-poundsforCuringConcreteC494/C494MSpecificationforChemicalAdmixturesforConcreteC497TestMethodsforConcretePipe,Ma...
