Designation:C1006−07(Reapproved2013)StandardTestMethodforSplittingTensileStrengthofMasonryUnits1ThisstandardisissuedunderthefixeddesignationC1006;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthesplit-tingtensilestrengthofmasonryunits.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E4PracticesforForceVerificationofTestingMachines3.SignificanceandUse3.1Masonryunitsaloneandwithinassemblagescommonlyfailinatensilemodewhenloadedincompressiontofailure.ThesetensilestressesresultfromdifferencesinmodulusofelasticityandPoisson’sratiobetweenthemasonryunitandmortar.Additionally,thedissimilarityinbehaviorofthegroutwithincoresofmasonryunitsunderloadleadstotensilestressesintheunitsandresultsinasplittingfailure.3.2Thistestmethodproducesalineloadalongthebedsurfaceofthemasonryunit.Thecompressiveloadappliedtotheunit,imposedbymeansofbearingrods,resultsinatensilestressdistributedovertheheightoftheunitforthesplitlengthoftheunit.Thistestmethodcanbeconductedwiththerodorientedeitherinthelongitudinaldirectionorinthetransversedirectionofthebedface.Thesplittingtensilestrengthiscalculatedbytheequationgivenin7.1.3.3Thetestvalueprovidesanindicatorofmasonry-unitsplittingtensilestrength.Additionally,thepresenceofdefectssuchasvisiblevoidsorimpuritiesinmasonryunitsmayberevealed.4.Apparatus4.1BearingRods—Matched,pairedsteelbearingro...
