ASTM_D_7063_-_D_7063M_-_18.pdf

Designation:D7063/D7063M18Standard Test Method forEffective Porosity and Effective Air Voids of CompactedAsphalt Mixture Samples1This standard is issued under the fixed designation D7063/D7063M;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 covers the determination of effectiveporosity or effective air voids of compacted mixtures by the useof a vacuum sealing method.1.2 This method can be used for compacted field andlaboratory asphalt mixture samples,as well as other compactedsamples with well-defined geometrical shapes,such as con-crete cylinders,cored rocks,and metal samples.1.3 The results of this test method can be used to determinethe degree of interconnectivity of air voids within a sample andcan be correlated to permeability of compacted asphalt mixturesamples.1.4 A multi-laboratory precision and bias statement for thisstandard has not been developed at this time.Therefore,thisstandard should not be used for acceptance or rejection of amaterial for purchasing purposes.1.5 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 nonconformancewith the standard.1.6 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.1.7 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D8 Terminology Relating to Materials for Roads and Pave-mentsD979/D979M Practice for Sampling Bituminous PavingMixturesD3666 Specification for Minimum Requirements for Agen-cies Testing and Inspecting Road and Paving MaterialsD4753 Guide for Evaluating,Selecting,and Specifying Bal-ances and Standard Masses for Use in Soil,Rock,andConstruction Materials TestingD5361/D5361M Practice for Sampling Compacted AsphaltMixtures for Laboratory TestingD7227/D7227M Practice for Rapid Drying of CompactedAsphalt Mixture Specimens Using Vacuum Drying Appa-ratusE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 For definitions of terms used in this standard,refer toTerminology D8.4.Significance and Use4.1 In this test method,a compacted sample is vacuumsealed inside a plastic bag.The density of the sample,SG1,iscalculated using a water displacement method,with the samplesealed.With the sample still in water,the bag is cut open.Sincethe sample is under vacuum and the air voids are evacuated,water will rush in to fill all the water-accessible air voids in thecompacted sample.With the saturated weight of sampleknown,an apparent maximum density,SG2,can be calculated.The difference between SG2 and SG1 is the measure of theamount of water that has penetrated the compacted sample.1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.21 onSpecific Gravity and Density of Asphalt Mixtures.Current edition approved on Aug.15,2018.Published August 2018.Originallypublished in 2005.Last approved in 2017 as D7063/D7063M 17.DOI:10.1520/D7063_D7063M-18.2For 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 This difference can be used to determine the fraction of totalnumber of voids that are accessible to water,effective percentporosity or percent effective air voids.4.2 The results obtained from this