Designation:D2828–96StandardSpecificationforNonbituminousInsertsforContractionJointsinPortlandCementConcreteAirfieldPavements,SawableType1ThisstandardisissuedunderthefixeddesignationD2828;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.Thecommitteeresponsibleforthisstandardhasvoteditswithdrawal.Intheabsenceofsubstantialreasonsthatitshouldbecontinued,theSocietywillapprovewithdrawalfrompublicationinMay1989.1.Scope1.1Thisspecificationcoversthecomposition,physicalproperties,dimensionaltolerances,andsamplingfortestsofinsertsplacedinportlandcementconcreteairfieldpavementwhiletheconcreteisinanunhardenedstatetoformcontractionjoints.Theinsertmaybepartiallyortotallyremovedaftertheconcretehashardenedtoprovideasuitablespaceforasealant.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Themetricequivalentsofinch-poundunitsmaybeapproximate.2.ReferencedDocuments2.1ASTMStandards:D1037MethodsforEvaluatingthePropertiesofWood-BaseFiberandParticlePanelMaterials23.Manufacture3.1Theproductshallconsistofprecutstripswhichhavebeenformedfrombondednaturalorman-madefibersorgranuleswithouttheadditionofbitumen.4.PhysicalRequirements4.1ResistancetoHandling—Stripsshallbeofsuchcharac-terasnottobedeformedorbrokenduringhandlingandplacementinconcrete.Piecesoftheinsertthathavebeendamagedshallberejected.4.2WaterAbsorption—Astandardtestspecimen4by4in.(100by100mm)insizewhensubmergedhorizontallyunder1in.(25.4mm)ofwatershallabsorbnotmorethan45.0mg/cm2in24hthroughthesixexposedfaces.4.3Expansion—Astandardtestspecimen4by4in.insizeafterbeingsubmergedhorizontallyfor24hshallhaveafinalthicknessbetween100and110%ofthethicknessbeforethetest.4.4ResistancetoSawing—Thematerialshallreadilycutanddisintegrateundertheactionofapower-drivendiamond-tippedorsiliconcarbidewater-cooledbladeataperipheralsp...
