Designation:C1586−05(Reapproved2011)StandardGuideforQualityAssuranceofMortars1ThisstandardisissuedunderthefixeddesignationC1586;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisdocumentprovidesguidanceregardingtheproperuseofSpecificationC270andTestMethodC780forevaluat-ingmasonrymortarproducedinthelaboratoryandattheconstructionsite.2.ReferencedDocuments2.1ASTMStandards:2C144SpecificationforAggregateforMasonryMortarC270SpecificationforMortarforUnitMasonryC780TestMethodforPreconstructionandConstructionEvaluationofMortarsforPlainandReinforcedUnitMasonry3.SignificanceandUse3.1Thisdocumentisintendedtoprovideguidanceandclarificationtodesigners,specifiers,inspectors,testingagen-cies,producers,andusersinspecifyingandevaluatingma-sonrymortar.3.2UsersofdocumentsSpecificationC270andTestMethodC780oftenconfuseandsometimesinadvertentlymisusepartsofthetwodocumentswhenspecifyingorevalu-atingmasonrymortar.ThisguideseekstoaddressspecificitemswithinSpecificationC270andTestMethodC780tohelppromotetheirproperuseandinterpretation.4.SpecifyingMasonryMortar4.1UseSpecificationC270tospecifymasonrymortarbyeithertheProportionorPropertySpecificationsofthatstan-dard,butnotboth.IfneithertheProportionnorPropertyspecificationisgiven,SpecificationC270theProportionspeci-ficationtobeused.4.2ProportionSpecifications—TheseSpecificationsdirectthemasontoproducethemasonrymortarusingdesignatedvolumetricproportionsofcementitiousmaterialsandaggregateassetforthinTable1,ProportionSpecifications,ofSpecifica-tionC270fortheTypeofmortarspecified.Thisprocedureofspecifyingmortarrequiresnosamplingandtestingofmortar,andhence,nomeasurementofmortarpropertiesinthelabo-ratoryorthefieldisrequired.Allthatisnecessaryisfieldconfirmationoftheproperproportionsofthemixesusedinconstruction.4.3PropertySpecifica...
