ASTM_D_5892_-_00.pdf

Designation:D 5892 00Standard Specification forType IV Polymer-Modified Asphalt Cement for Use inPavement Construction1This standard is issued under the fixed designation D 5892;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(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers asphalt cements that have beenmodified by the addition of an appropriate polymer for use inpavement construction.It was developed to provide a referencefor specifying polymer-modified asphalt and reflects the prop-erties of currently available commercial products.This speci-fication is not intended to be a performance-based specifica-tion.1.2 This specification covers asphalt cements that have beenmodified by dispersing non-crosslinked styrene-butadiene-styrene(SBS)block copolymers.However,any polymer maybe used that will give the required test results when blendedwith the desired asphalt.1.3 The following safety hazards caveat pertains only to thetest methods portion,Section 6,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:D 5 Test Method for Penetration of Bituminous Materials2D 36 Test Method for Softening Point of Bitumen(Ring-and-Ball Apparatus)3D 92 Test Method for Flash and Fire Points by ClevelandOpen Cup4D 113 Test Method for Ductility of Bituminous Materials2D 140 Practice for Sampling Bituminous Materials2D 1754 Test Method for Effect of Heat andAir onAsphalticMaterials(Thin-Film Oven Test)2D 2170 Test Method for Kinematic Viscosity of Asphalts(Bitumens)2D 2872 Test Method for Effect of Heat andAir on a MovingFilm of Asphalt(Rolling Thin-Film Oven Test)2D 4957 Test Method for Apparent Viscosity of AsphaltEmulsion Residues and Non-Newtonian Bitumens byVacuum Capillary Viscometer2D 5546 Test Method for Solubility of Polymer-ModifiedAsphalt Materials in 1,1,1-Trichloroethane2D 6084 Test Method for Elastic Recovery of BituminousMaterials by Ductilometer2E 11 Specification for Wire-Cloth and Sieves for TestingPurposes53.Manufacture3.1 The asphalt cement used to prepare the polymer-modified asphalt cement shall be prepared by the refining ofcrude petroleum by suitable means.3.2 Polymer-modified asphalt Types A through F representdifferent grades of asphalt and different levels of polymer usedin their manufacture.4.Physical Requirements4.1 The polymer-modified asphalt cement shall be homoge-neous and free from water and shall not foam when heated to175C(347F).4.2 The polymer-modified asphalt cement shall conform tothe requirements of Table 1.4.3 The polymer modifier and asphalt cement shall bepreblended and dispersed uniformly prior to use.5.Methods of Sampling and Testing5.1 Sample and test the polymer-modified asphalt cement inaccordance with the following Test Methods and Practice:5.1.1 SamplingPractice D 140.5.1.2 Penetration Test Method D 5.5.1.3 Viscosity at 60C(140F)Test Method D 4957.5.1.4 Viscosity at 135C(275F)Test Method D 2170.5.1.5 Flash Point,Cleveland Open CupTest MethodD 92.5.1.6 Rolling Thin-Film Oven TestTest Method D 2872.5.1.7 Thin-Film Oven TestTest Method D 1754.5.1.8 Solubility of Polymer-Modified Asphalt Cement in1,1,1-TrichloroethaneTest Method D 5546.5.1.9 Elastic RecoveryTest Method D 6084.1This specification is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.45 onModified Asphalt Specifications.Current edition approved Dec.10,2000.Published February 2001.Originallypublished as D 5892 96.Last previous edition D 5892 96a.2Annual Book of ASTM Standards,Vol 04.03.3Annual Book of ASTM Standards,Vol 04.04.4Annual Book of ASTM Standards,Vol 05.01.5Annual Book of ASTM Standards,Vol 14.02.1Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.6.Test Methods for Type IV Polymer-Modified AsphaltBinder6.1 Summary of the Separation Test:6.1.1 ScopeThe separation of polymer and asphalt duringhot storage is evaluated by comparing the ring and ballsoftening point of the top and bottom samples taken from aconditioned,sealed tube of polymer-modified asphalt.Theconditioning consists of placing a sealed tube of polymer-modified asphalt in a vertical position in a 1636 5C(325 610F)oven for a 48 h period(see Footnote B of Table 1).Thisis not intended to be a performance-based specification.It wasdeveloped to provide a reference for determining the relativeseparation properties between different types of asphalt modi-fiers and their respective asphalts.6.1.2 Significance and UsePolymer-modified asphaltsrelat