ASTM_D_4866_-_D_4866M_-_88_2011e1.pdf

Designation:D4866/D4866M88(Reapproved 2011)1Standard Performance Specification forCoal Tar Pitch Emulsion Pavement Sealer Mix FormulationsContaining Mineral Aggregates and Optional PolymericAdmixtures1This standard is issued under the fixed designation D4866/D4866M;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.1NOTEUnits information was editorially revised in June 2011.1.Scope1.1 This performance specification covers mixtures of emul-sified coal-tar pitch(mineral colloid type),mineral aggregates,and optional polymeric admixtures that are used as a weather-protective and straight aliphatic hydrocarbon resistant coatingsover bituminous pavements of airports,parking areas,anddriveways.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.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 The following safety hazards statement applies only tothe test method 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prior to use.2.Referenced Documents2.1 ASTM Standards:2D466 Test Methods for Films Deposited From BituminousEmulsions(Withdrawn 1998)3D2939 Test Methods for Emulsified Bitumens Used asProtective CoatingsD3699 Specification for KerosineD5727 Specification for Emulsified Refined Coal Tar(Min-eral Colloid Type)3.Materials3.1 Ratios of component materials that make up the mixtureto be tested,as well as detailed specifications for the mineralaggregate and optional polymeric admixture shall be as agreedupon between the purchaser and the seller.3.2 The base coal-tar emulsion shall meet the requirementsof Specification D5727.3.3 The mineral aggregate shall be either a natural ormanufactured product composed of clean,hard,durable,un-coated particles,free from dirt,organic matter,and otherobjectionable substances.3.4 The optional polymeric admixture shall be any polymeror mixtures thereof,with added compounding ingredients ofsuch nature and quality that will allow the admixture to becompatible with and enhance the performance of mineralaggregate modified coal-tar emulsion pavement sealers.3.5 The water used in mixing shall be potable and free fromharmful soluble salts.The temperature of the water shall be atleast 10C 50F.4.Physical Requirements4.1 The mixture as applied shall be of uniform consistencyand suitable for application to properly prepared or primedsurfaces at a rate of 0.4 to 1.0 L/m21.0 to 2.5 gal/100 ft2without appreciable drainage on inclines up to 0.8%0.1in./ft.NOTE1Pavement and ambient temperature should be not less than7C 45F at the time of application and for at least 12 h thereafter,withno precipitation of rain,snow,and so forth,until the emulsion has dried.NOTE2When these materials are applied in commercial quantities thepurchaser or inspector should observe the mixing to ensure that after eachstep no coagulation or separation of the ingredients occurs and that themix has a good application consistency.When possible,a small batchshould be mixed and observed prior to the onset of major work.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.09on Bituminous Emulsions.Current edition approved May 1,2011.Published June 2011.Originallyapproved in 1988.Last previous edition approved in 2003 as D4866 88(2003)1.DOI:10.1520/D4866_D4866M-88R11E01.2For 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 standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2 The mixture shall conform to the physical propertiesprescribed in Table 1.5.Sampling5.1 Sample in accordance with Test Methods D2939.6.Test Methods6.1 RedispersibilityThe product(coal-tar emulsion/aggregate/water/optional admixture)shall be of a uniformconsistency without settlement or segregation in storage to theextent that it can be readily dispersed and applied to thepavement.6.2 Drying TimeTest Methods D2939,section on Firm Setexcept test after drying for 8 h.6.3 Resistance to HeatTest Method D2939,section onHeat Test at 80 6 3C 176 6 5F for 2 h.6.