1、Designation:D5404/D5404M21Standard Practice forRecovery of Asphalt Binder from Solution Using the RotaryEvaporator1This standard is issued under the fixed designation D5404/D5404M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the y
2、ear 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 practice is intended to recover asphalt from asolvent using the rotary evaporator to ensure that changes inthe
3、asphalt properties during the recovery process are mini-mized.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.Combiningvalu
4、es from the two systems may result in nonconformancewith the standard.1.2.1 Residual pressure measurements are shown in both theSI unit of kPa and the commonly used non-standard equivalentunit of“mm of Hg.”1.2.2 Measurements of volume and mass are only given inSI units because they are the only unit
5、s typically used inpractice when performing this standard practice.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 d
6、oes 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
7、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.R
8、eferenced Documents2.1 ASTM Standards:2D92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD1856 Test Method for Recovery of Asphalt from Solutionby Abson MethodD2939 Test Methods for Emulsified Bitumens Used asProtective Coatings(Withdrawn 2012)3D3666 Specification for Minimum Requ
9、irements for Agen-cies Testing and Inspecting Road and Paving MaterialsD6368 Specification for Vapor-Degreasing Solvents Basedon normal-Propyl Bromide and Technical Grade normal-Propyl BromideE1 Specification for ASTM Liquid-in-Glass ThermometersE1137/E1137M Specification for Industrial Platinum Res
10、is-tance ThermometersE2251 Specification for Liquid-in-Glass ASTM Thermom-eters with Low-Hazard Precision Liquids3.Summary of Practice3.1 The solution of solvent and asphalt from a prior extrac-tion is distilled by partially immersing the rotating distillationflask of the rotary evaporator in a heat
11、ed oil bath while thesolution is subjected to a partial vacuum and a flow of nitrogengas or carbon dioxide gas.The recovered asphalt can then besubjected to testing as required.4.Significance and Use4.1 In order to determine the characteristics of the asphalt inan asphalt paving mixture,it is necess
12、ary to extract the asphaltfrom the aggregate by means of a suitable solvent and then torecover the asphalt from the solvent without significantlychanging the asphalts properties.The asphalt recovered fromthe solvent by this practice can be tested using the same1This practice is under the jurisdictio
13、n of ASTM Committee D04 on Road andPaving Materials and is the direct responsibility of Subcommittee D04.25 onAnalysis of Asphalt Mixtures.Current edition approved Nov.1,2021.Published November 2021.Originallyapproved in 1993.Last previous edition approved in 2017 as D5404/D5404M 12(2017).DOI:10.152
14、0/D5404_D5404M-21.2For 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.3The last approved version of this historical st
15、andard is referenced onwww.astm.org.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 Princip
16、les for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1methods as for the original asphalt cement,and comparisonsbetween the properties of the original and recovered asphaltcan be made.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 tha