1、Designation: D2824/D2824M 06 (Reapproved 2012)1Standard Specification forAluminum-Pigmented Asphalt Roof Coatings, Nonfibered,Asbestos Fibered, and Fibered without Asbestos1This standard is issued under the fixed designation D2824/D2824M; the number immediately following the designation indicates th
2、eyear 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.This standard has been approved for use by agencies of the Dep
3、artment of Defense.1NOTEUnits information was editorially corrected in August 2012.1. Scope1.1 This specification covers asphalt-based, aluminum roofcoatings suitable for application to roofing or masonry surfacesby brush or spray.1.2 The values stated in either SI units or inch-pound unitsare to be
4、 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 precautionary caveat pertains only to
5、thetest method portion, Section 8, 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 r
6、egulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2C1549 Test Method for Determination of Solar ReflectanceNear Ambient Temperature Using a Portable Solar Reflec-tometerD962 Specification for Aluminum Powder and Paste Pig-ments for PaintsD4798 Practice for Accelerated Wea
7、thering Test Conditionsand Procedures for Bituminous Materials (Xenon-ArcMethod)D6511 Test Methods for Solvent Bearing Bituminous Com-pounds3. Classification3.1 Type INonfibered, containing no fiber.3.2 Type IIFibered, containing asbestos fiber.3.3 Type IIIFibered, containing no asbestos fiber.4. Ma
8、terials and Manufacture4.1 Asphalt-based, aluminum roof coatings shall consist ofan asphalt base, volatile petroleum solvents, and a leafing typeof aluminum pigment conforming to the requirements ofSpecification D962, with or without fiber added. They shall bemixed to a smooth, uniform consistency s
9、uitable for applica-tion by brush, roller, or by spraying.5. Composition5.1 Asphalt-based, aluminum roof coatings complying withthis specification shall conform to the following compositionlimits:Type I Type II orType IIIWater, max, % 0.3 0.3Nonvolatile matter (NVM), min, % 40 40Insoluble in CS2, ma
10、x, % of NVM 40 50Metallic aluminum, min, % 11 96. Physical Requirements6.1 UniformityAfter a thoroughly stirred sample has stoodfor 72 h at room temperature 23 6 2C 73.4 6 F in a closedcontainer, it shall show no separation of solvent or settling thatcan not be overcome by moderate stirring.6.2 Cons
11、istencyThe roof coating shall be of a consistencythat will spread readily and permit application by brush, roller,or spray to produce a film in which the aluminum pigment leafsto form a bright reflective surface on prepared roofing, satu-rated felt, and metal surfaces at ambient temperatures above10
12、C 50F.6.2.1 Type IConsistency at 25C 77F shall be between20 and 30 Stormer s/100 revolutions of the paddle-type rotorwith a 100-g load in addition to the standardizing load.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibilit
13、y of Subcommittee D08.05on Solvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved Aug. 15, 2012. Published August 2012. Originallyapproved in 1969. Last previous edition approved in 2006 as D2824 06. DOI:10.1520/D2824_D2824M-06R12E01.2For referenced ASTM standard
14、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 19
15、428-2959. United States16.2.2 Type II and Type IIIConsistency at 25C 77Fshall be between 15 and 90 Stormer s/100 revolutions of thepropeller-type rotor with a 300-g load in addition to thestandardizing load.6.3 ReflectanceThe percent initial luminous reflectance ofcoatings, determined on samples bef
16、ore and after high tem-perature shelf aging, and after 1000 h accelerated weatheringtesting in accordance with Practice D4798, shall be not lessthan 50 % when tested in accordance with Test Method C1549.7. Sampling7.1 See Section 4 of Test Methods D6511.8. Test MethodsDetermine composition and physi
17、cal requirements by usingthe procedures in Test Methods D6511.9. Inspection9.1 Inspection of the material shall be as agreed uponbetween the purchaser and the seller as part of the purchasecontract.10. Rejection and Resubmittal10.1 Failure to conform to any of the requirements pre-scribed in this sp
18、ecification may constitute grounds for rejec-tion. In the case of rejection, the seller shall have the right toreinspect the rejected material and resubmit the lot afterremoval of those packages not conforming to the requirements.11. Packaging and Package Marking11.1 All products shall be packaged a
19、nd labeled in accor-dance with applicable regulations. Each package shall bemarked to indicate the applicable ASTM International specifi-cation. Packages containing product meeting Type II shall beara statement that the product contains asbestos.12. Keywords12.1 aluminum-pigmented; asbestos-fiber; a
20、sphalt; fiberedwithout asbestos; nonfiberedASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and
21、the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision
22、 of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shou
23、ldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D2824/D2824M 06 (2012)12
