Designation:E2277−14StandardGuideforDesignandConstructionofCoalAshStructuralFills1ThisstandardisissuedunderthefixeddesignationE2277;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversproceduresforthedesignandcon-structionofengineeredstructuralfillsusingcoalcombustionproducts(CCPs)includingbutnotlimitedtoflyash,bottomash,boilerslagorotherCCPsthatcanmeettherequirementsofanengineeredfillasdescribedherein.CCPsmaybeusedaloneorblendedwithsoilsorothersuitablematerialstoachievedesiredgeotechnicalproperties.1.2ThisguidedescribestheuniquedesignandconstructionconsiderationsthatmayapplytoengineeredstructuralfillsconstructedofwithCCPsthathavebeenadequatelycharac-terizedasbeingsuitableforthisbeneficialuse.1.3BeneficialutilizationofCCPsconsistentwiththisstan-dardconservesland,naturalresources,and1.4ThisguideappliesonlytoCCPsproducedprimarilybythecombustionofcoal.1.5Thetesting,engineering,andconstructionpracticesforcoalashfillsaresimilartogenerallyacceptedpracticesfornaturalsoilfills.Coalashstructuralfillsshouldbedesignedusinggenerallyacceptedengineeringpractices.However,whenCCPsareusedinsaturatedconditionssuchaspondsorimpoundments,thepotentialforliquefactionmayneedtobeconsidered.1.6Lawsandregulationsgoverningtheuseofcoalashvarybystate.Theuserofthisguidehastheresponsibilitytodetermineandcomplywithapplicablerequirements.1.7Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatoryrequirementspriortouse.2.ReferencedD...