1、Designation:D550514(Reapproved 2020)Standard Practice forClassifying Emulsified Recycling Agents1This standard is issued under the fixed designation D5505;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A nu
2、mber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice identifies emulsified petroleum productsthat may be used as recycling agents in recycled mixes.Thesematerials are classified by
3、 viscosity or by low temperaturepenetration after aging.1.2 This practice addresses emulsified materials designedspecifically for use in recycling.The use of emulsified mate-rials for recycling shall not be limited to this practice.Forinstance,the emulsified asphalts specified in SpecificationsD977
4、and D2397/D2397M may be used.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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 s
5、tandard 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
6、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:2D5/D5M Test Method for Penetration of Bituminous Mate-rialsD140/D140M Practice for Samplin
7、g Asphalt MaterialsD977 Specification for Emulsified AsphaltD1754/D1754M Test Method for Effects of Heat and Air onAsphaltic Materials(Thin-Film Oven Test)D2042 Test Method for Solubility of Asphalt Materials inTrichloroethyleneD2170/D2170M Test Method for Kinematic Viscosity ofAsphaltsD2397/D2397M
8、Specification for Cationic Emulsified As-phaltD2872 Test Method for Effect of Heat and Air on a MovingFilm of Asphalt(Rolling Thin-Film Oven Test)D4124 Test Method for Separation of Asphalt into FourFractionsD6930 Test Method for Settlement and Storage Stability ofEmulsified AsphaltsD6933 Test Metho
9、d for Oversized Particles in EmulsifiedAsphalts(Sieve Test)D6937 Test Method for Determining Density of EmulsifiedAsphaltD6997 Test Method for Distillation of Emulsified AsphaltD7402 Practice for Identifying Cationic Emulsified AsphaltsD7496 Test Method for Viscosity of Emulsified Asphalt bySaybolt
10、Furol ViscometerD7553 Test Method for Solubility of Asphalt Materials inN-Propyl Bromide3.Significance and Use3.1 Recycling of deteriorated asphalt pavements is beingused as a routine method of maintenance and rehabilitation.Utilization of existing materials as the major component of thisprocedure m
11、ay yield benefits in quality,economy,and preser-vation of natural resources.Recycling takes many forms:hot,cold,in-situ,central plant,and surface.This practice may beused for various recycling methods.3.2 This practice describes emulsified recycling(ER)agentsas belonging to three groups:ER-1,ER-2,an
12、d ER-3 as shownin Table 1.The range of recycling methods demands severalemulsified recycling agents.The groups should provide ad-equate freedom of selection for most recycling methods.3.2.1 ER-1 is a material whose main function is to rejuve-nate aged asphalt.The material is a petroleum derivative,a
13、ndhighly compatible with asphalts.It is classified by viscosity.3.2.2 ER-2 and ER-3 are materials that combine rejuvena-tors and asphalt components in one emulsified asphalt.Thesesoft residues are classified by low temperature penetration afteraging.They are typically used in recycling where there i
14、s an1This practice is under the jurisdiction of ASTM Committee D04 on Road andPaving Materials and is the direct responsibility of Subcommittee D04.41 onEmulsified Asphalt Specifications.Current edition approved Nov.1,2020.Published November 2020.Originallyapproved in 1994.Last previous edition appr
15、oved in 2014 as D5505 14.DOI:10.1520/D5505-14R20.2For 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 In
16、ternational,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.increased demand for asphalt as when new aggregates areadded,or where immediate cohesiveness is
