ASTM_D_6084_-_D_6084M_-_13.pdf

Designation:D6084/D6084M13Standard Test Method forElastic Recovery of Asphalt Materials by Ductilometer1This standard is issued under the fixed designation D6084/D6084M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method assesses the elastic recovery of anasphalt material measured by the recoverable strain determinedafter severing an elongated briquet specimen of the material ofthe form described in 4.1.The specimens are pulled to aspecified distance at a specified speed and at a specifiedtemperature.Unless otherwise specified,the test shall be madeat a temperature of 25 6 0.5C 77 6 0.9F and with a speedof 5 cm/min 6 5%.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 WarningMercury has been designated by the UnitedStates Environmental Protection Agency and many state agen-cies as a hazardous material that can cause central nervoussystem,kidney and liver damage.Mercury,or its vapor,may behazardous to health and corrosive to materials.Caution shouldbe taken when handling mercury and mercury containingproducts.See the applicable Material Safety Data Sheet(MSDS)for details and EPAs website(http:/www.epa.gov/mercury/index.htm)for additional information.Users shouldbe aware that selling mercury and/or mercury containingproducts into your state may be prohibited by state law.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsD5 Test Method for Penetration of Bituminous MaterialsD113 Test Method for Ductility of Bituminous MaterialsD1754 Test Method for Effects of Heat and Air on AsphalticMaterials(Thin-Film Oven Test)D2872 Test Method for Effect of Heat and Air on a MovingFilm of Asphalt(Rolling Thin-Film Oven Test)D6934 Test Method for Residue by Evaporation of Emulsi-fied AsphaltD6997 Test Method for Distillation of Emulsified AsphaltD7403 Test Method for Determination of Residue of Emul-sified Asphalt by Low Temperature Vacuum DistillationD7497 Practice for Recovering Residue from EmulsifiedAsphalt Using Low Temperature Evaporative TechniqueE1 Specification for ASTM Liquid-in-Glass ThermometersE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE77 Test Method for Inspection and Verification of Ther-mometersE220 Test Method for Calibration of Thermocouples ByComparison TechniquesE644 Test Methods for Testing Industrial Resistance Ther-mometersE1137/E1137M Specification for Industrial Platinum Resis-tance ThermometersE2251 Specification for Liquid-in-Glass ASTM Thermom-eters with Low-Hazard Precision Liquids1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.44 onRheological Tests.Current edition approved Nov.1,2013.Published December 2013.Originallyapproved in 1997.Last previous edition approved in 2006 as D6084 06.DOI:10.1520/D6084_D6084M-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.Significance and Use3.1 This test method is useful in confirming that a materialhas been added to the asphalt to provide a significant elasto-meric characteristic.It does not necessarily identify the type oramount of material added.4.Apparatus4.1 MoldThe mold3shall be similar in design to thatshown in Fig.1.The mold shall be made of brass,10.0 6 0.1mm thick,the ends b and b being known as clips,and the partsa and a as sides of the mold,with a brass base plate that islarger than the assembled mold.The dimensions of theassembled mold shall be as shown in Fig.1 with the permis-sible variations indicated.(See Note 1.)4.2 Water Bath for Conditioning SpecimenMaintain thewater bath at the specified test temperature,varying not morethan 0.5C 0.9F from this temperature.The volume of watershall be not less than 10 L,and the specimen immersed to adepth of not less than 2.5 cm.4.3 Testing MachineFor elongating the briquet of asphaltmaterial,any appara