ASTM_D_1560_-_15.pdf

Designation:D156015Standard Test Methods forResistance to Deformation and Cohesion of AsphaltMixtures by Means of Hveem Apparatus1This standard is issued under the fixed designation D1560;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover the determination of(1)theresistance to deformation of compacted asphalt mixtures bymeasuring the lateral pressure developed when applying avertical load by means of the Hveem stabilometer and(2)thecohesion of compacted asphalt mixtures by measuring theforce required to break or bend the sample as a cantilever beamby means of the Hveem cohesiometer.21.2 The values stated in inch-pound units are to be regardedas standard,with the exception that the steel shot flow rate forthe cohesiometer is expressed in g/min units.The values givenin parentheses are mathematical conversions to SI units that areprovided for information only and are not considered standard.1.3 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.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:3D1561 Practice for Preparation of Bituminous Mixture TestSpecimens by Means of California Kneading CompactorD3666 Specification for Minimum Requirements for Agen-cies Testing and Inspecting Road and Paving Materials2.2 California Department of Transportation Standards:Test 366 Method of Test for Stabilometer Value23.Significance and Use3.1 The results of the deformation and cohesion tests can beused for specification purposes or for mix design purposes,orboth.For example,these values can be used for specificationcompliance testing of aggregate properties.They can also beused for specification compliance testing of the mix.Thecohesion test is sometimes used for fine mixes such as sandmixes wherein cohesion,or tensile strength,is of major orprimary importance.The cohesion test is also sometimes usedfor the design of cold mixes containing emulsified asphalt.NOTE1The quality of the results produced by this standard aredependent on the competence of the personnel performing the procedureand the capability,calibration,and maintenance of the equipment used.Agencies that meet the criteria of Specification D3666 are generallyconsidered capable of competent and objective testing/sampling/inspection/etc.Users of this standard are cautioned that compliance withSpecification D3666 alone does not completely assure reliable results.Reliable results depend on many factors;following the suggestions ofSpecification D3666 or some similar acceptable guideline provides ameans of evaluating and controlling some of those factors.RESISTANCE TO DEFORMATION4.Apparatus4.1 Stabilometer The Hveem stabilometer(Fig.1 and Fig.2)is a triaxial testing device consisting essentially of a rubbersleeve within a metal cylinder containing a liquid whichregisters the horizontal pressure developed by a compacted testspecimen as a vertical load is applied.4.2 Testing MachineA compression testing machine hav-ing a minimum capacity of 10 000 lbf(44.5 kN).Fig.3 showsthe stabilometer in a testing machine.4.3 Test Specimen Push-Out DeviceA device,to push thespecimen out of the mold.4.4 OvenAn oven capable of maintaining a temperature of140 6 5F(60 6 3C).1These test methods are under the jurisdiction of ASTM Committee D04 onRoad and Paving Materials and are the direct responsibility of SubcommitteeD04.20 on Mechanical Tests of Asphalt Mixtures.Current edition approved July 1,2015.Published August 2015.Originallyapproved in 1958.Last previous edition approved in 2009 as D1560 09a.DOI:10.1520/D1560-15.2A more detailed description of the procedures for performing the tests isavailable on request from the California Dept.of Transportation,5900 FolsomBlvd.,Sacramento,CA 95819.Also available is a procedure containing detailsregarding the operation and calibration of the stabilometer and the replacement ofthe stabilometer diaphragm.3For 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 4.5 Calibration CylinderAhollow metal cylinder 4.000 60.005 in.(101.6 6 0.13 mm)in outside diameter by 5.50 60