Designation:C535−16StandardTestMethodforResistancetoDegradationofLarge-SizeCoarseAggregatebyAbrasionandImpactintheLosAngelesMachine1ThisstandardisissuedunderthefixeddesignationC535;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodcoverstestingsizesofcoarseaggregatelargerthan19mm(3⁄4in.)forresistancetodegradationusingtheLosAngelestestingmachine(Note1).NOTE1—Aprocedurefortestingcoarseaggregatesmallerthan37.5mm(11⁄2in.)iscoveredinTestMethodC131/C131M.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundvaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C125TerminologyRelatingtoConcreteandConcreteAg-gregatesC131/C131MTestMethodforResistancetoDegradationofSmall-SizeCoarseAggregatebyAbrasionandImpactintheLosAngelesMachineC136/C136MTestMethodforSieveAnalysisofFineandCoarseAggregatesC670PracticeforPreparingPrecisionandBiasStatementsforTestMethodsforConstructionMaterialsC702/C702MPracticeforReducingSamplesofAggregatetoTestingSizeD75/D75MPracticeforSamplingAggregatesE11SpecificationforWovenWireTestSieveClothandTestSieves3.Terminology3.1Fordefinitionsoftermsusedinthistestmethod,refertoTerminologyC125.4.SummaryofTestMethod4.1Thistestisameasureofdegradationofmineralaggre-gatesofstandardgradingsresultingfromacombinationofactionsincludingabrasionorattrition,impact,andgrindinginarotatingsteeldrumcontaining12steelspheres.Asthedrumrotates,ashelfplatepicksupthesampleandthesteelspheres,carryin...
