ASTM_D_2872_-_22.pdf

Designation:D287222Standard Test Method forEffect of Heat and Air on a Moving Film of Asphalt Binder(Rolling Thin-Film Oven Test)1This standard is issued under the fixed designation D2872;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 This test method is intended to measure the effect ofheat and air on a moving film of semi-solid asphaltic materials.The effects of this treatment are determined from measure-ments of the selected properties of the asphalt before and afterthe test.1.2 The values stated in inch-pound units are to be regardedas the 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 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:2D113 Test Method for Ductility of Asphalt MaterialsD2171/D2171M Test Method for Viscosity of Asphalts byVacuum Capillary ViscometerD3666 Specification for Minimum Requirements for Agen-cies Testing and Inspecting Road and Paving MaterialsE1 Specification for ASTM Liquid-in-Glass ThermometersE77 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 ThermometersE2877 Guide for Digital Contact Thermometers2.2 NCHRP Documents:NCHRP Project 20-07/Task 400 Effect of Elevation onRolling Thin Film Oven Aging of Asphalt Binder3.Summary of Test Method3.1 A moving film of asphaltic material is heated in an ovenfor 85 min at 325 F(163 C).The effects of heat and air aredetermined from changes in physical test values as measuredbefore and after the oven treatment.An optional procedure isprovided for determining the change in sample mass.3.2 Precision values for this test method have been devel-oped for viscosity at 140 F(60 C);ductility at 60 F(15.6 C);and mass change.4.Significance and Use4.1 This test method indicates approximate change in prop-erties of asphalt during conventional hot-mixing at about302 F(150 C)as indicated by viscosity and other rheologicalmeasurements.It yields a residue which approximates theasphalt condition as incorporated in the pavement.If themixing temperature differs appreciably from the 302 F(150 C)level,more or less effect on properties will occur.Thistest method can also be used to determine mass change,whichis a measure of asphalt volatility.NOTE1The quality of results produced by this standard is dependenton the competence of the personnel performing the procedure and thecapability,calibration,and maintenance of the equipment used.Agenciesthat meet the criteria of Specification D3666 are generally consideredcapable of competent and objective testing,sampling,inspection,etc.Users of this standard are cautioned that compliance with SpecificationD3666 alone does not completely ensure reliable results.Reliable resultsdepend on many factors;following the suggestions of Specification D3666or some similar acceptable guidance provides a means of evaluating andcontrolling some of those factors.1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.46 onDurability and Distillation Tests.Current edition approved May 1,2022.Published May 2022.Originallyapproved in 1970.Last previous edition approved in 2021 as D2872 21.DOI:10.1520/D2872-22.2For 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