Designation:D5313/D5313M−12(Reapproved2013)StandardTestMethodforEvaluationofDurabilityofRockforErosionControlUnderWettingandDryingConditions1ThisstandardisissuedunderthefixeddesignationD5313/D5313M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversproceduresforevaluatingthedurabilityofrockforerosioncontrolwhenexposedtowettinganddryingconditionsonslabsofrock.Thisweatheringtestexposestherocktowettinganddryingcyclessimilartofluctuatingwaterlevelsandweatherconditions.Therockslabs,preparedinaccordancewithproceduresinPracticeD5121,areintendedtoberepresentativeoferosioncontrolrockanditsweaknesses.Thetestisappropriateforbreakwaterstone,armorstone,riprapandgabionsizedrockmaterials.Thelimitationsofthetestaretwofold.First,thesizeofthecutrockslabspecimensmayeliminatesomeoftheinternaldefectspresentintherockstructure.Thetestspecimensmaynotberepresentativeofthequalityofthelargerrocksamplesusedinconstruction.Carefulexaminationoftherocksourceandpropersamplingareessentialinminimizingthislimitation.Secondly,thetestrequirestherockslabstobeexposedto80wetting-dryingcycles.Thetestistimeintensiveandwillrequireapproximatelythreemonthstocompletethesamplepreparation,testing,andanalysisportionsoftheprocedure.1.2Theuseofreclaimedconcreteandothermaterialsisbeyondthescopeofthistestmethod.1.3Units—ThevaluesstatedineitherSIunitsorinch-poundunits[presentedinbrackets]aretoberegardedsepa-ratelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedinde-pendentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026,unlesssupersededbythisstandard.1.4.1Forpurposesofcomparingmeasure...
