Designation:C1713−17StandardSpecificationforMortarsfortheRepairofHistoricMasonry1ThisstandardisissuedunderthefixeddesignationC1713;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversmortarfortherepairofma-sonrythatwasconstructedwithmethodsandmaterialsthatpre-datetheoriginationofcurrentstandardsofconstructionthatarecompatiblewithit.Themortarmaybeusedfornon-structuralpurposessuchasrepointingofthemasonry,orforstructuralpurposessuchas,butnotrestrictedto,re-constructionorrepairofmortarjointsthatcontributetothestructuralintegrityofthemasonry.1.2Masonryincludesthefollowingunitslaidinmortar:(1)caststone,(2)claymasonryunitsbrickandclaytile,(3)concretemasonryunits,(4)naturalstone,and(5)terracotta.1.3Thisspecificationmaybeusedtopre-qualifymortarforaproject.1.4Mortarstestedusingthisspecificationarelaboratory-preparedmortarsanddonotrepresentin-place,sitemortars.1.5Useofthisspecificationshouldbebasedonathoroughunderstandingofthefunction,maintenance,andrepairrequire-mentsforthepreservationandcontinuedperformanceofthemasonryinthecontextofthebuildingstructureandlong-termperformance.Theuserofthisspecificationisresponsibleforexaminingallcriteriaandselectingtheappropriatemortarformulationandpropertiesrequired.1.6Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.8Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedi...
