1、Designation:D2823/D2823M05(Reapproved 2011)1Standard Specification forAsphalt Roof Coatings,Asbestos-Containing1This standard is issued under the fixed designation D2823/D2823M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year
2、 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.This standard has been approved for use by agencies of the Department of Defense.1NOTEUnits information was editorially revised in
3、 June 2011.1.Scope1.1 This specification covers asbestos-containing asphaltroof coatings of brushing or spraying consistency.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,ea
4、chsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 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 establi
5、sh appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D312 Specification for Asphalt Used in RoofingD449 Specification for Asphalt Used in Dampproofing andWaterproofingD946 Specification for Penet
6、ration-Graded Asphalt Cementfor Use in Pavement ConstructionD1079 Terminology Relating to Roofing and WaterproofingD6511 Test Methods for Solvent Bearing Bituminous Com-pounds3.Terminology3.1 For definitions of terms used in this specification,seeTerminology D1079.4.Classification4.1 Type I is made
7、from asphalts characterized as self-healing,adhesive,and ductile,and conforming to the require-ments of Specification D312,Type I;Specification D449,Types I or II;or Specification D946.4.2 Type IIis made from asphalts characterized by highsoftening point and relatively low ductility,and conforming t
8、othe requirements of Specification D312 Types II or III;orSpecification D449,Type III.5.Materials and Manufacture5.1 Asphalt roof coatings shall consist of an asphalt base,volatile petroleum solvents,and mineral stabilizers includingasbestos fiber,mixed to a smooth,uniform consistency suitablefor ap
9、plication by squeegee,three-knot brush,paint brush,roller,or by spraying.6.Composition6.1 Asphalt roof coatings complying with this specificationshall conform to the following composition limits:minmaxWater,%.1.0(D6511,Section 10)Nonvolatile matter,%50.(D6511,Section 7)Asbestos and othermineral stab
10、ilizers,%520(D6511,Section 18)Asphalt,%40.(D6511,Section 18)Mineral matter based onoriginal mass ofinsoluble residue,%80.(D6511,Section 19)7.Physical Requirements7.1 UniformityAfter a thoroughly stirred sample has stoodfor 72 h at room temperature in a closed container,it shall showno separation of
11、solvent or settling that cannot be overcome bymoderate stirring.7.2 Consistency The roof coating shall be of a consistencythat will spread readily and permit application by squeegee,1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct resp
12、onsibility of Subcommittee D08.05on Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved May 1,2011.Published June 2011.Originallyapproved in 1969.Last previous edition approved in 2005 as D2823 05.DOI:10.1520/D2823_D2823M-05R11E01.2For referenced ASTM standard
13、s,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.
14、United StatesNOTICE:This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International(www.astm.org)for the latest information1brush,roller,or spray at the rate of 1.25 m2/L 50 ft2/gal onprepared roofing,saturated felt,and metal surfaces at ambienttemperat
15、ures above 10C 50F.Consistency at 25C 77Fshall be between 50 and 400 Stormer s/100 revolutions whenusing 450 gm driving weight.7.3 Behavior at 60C 140FThe roof coating shall showno evidence of blistering,and sag or slide shall be no greaterthan 6 mm 14in.Staining or absorption of the coating on ther
16、everse side of the prepared roofing test panel shall not exceed5%of the coated area.7.4 Pliability at 0C 32FThere shall be no cracking orseparation of the roof coating from the metal.8.Sampling8.1 Sample the material from the original containers imme-diately after stirring to a uniform consistency in accordancewith Section 4,Sampling,of Test Methods D6511.Restirsamples to ensure uniformity immediately before withdrawingportions for individual tests.9.Test Methods9.1 Determine composition and phy
