1、Designation: D 2824 06Standard Specification forAluminum-Pigmented Asphalt Roof Coatings, Nonfibered,Asbestos Fibered, and Fibered without Asbestos1This standard is issued under the fixed designation D 2824; the number immediately following the designation indicates the year oforiginal adoption or,
2、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.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1
3、 This specification covers asphalt-based, aluminum roofcoatings suitable for application to roofing or masonry surfacesby brush or spray.1.2 The values stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.1.3 The following precautionary caveat pert
4、ains only to 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 appli
5、cability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2C 1549 Test Method for Determination of Solar ReflectanceNear Ambient Temperature Using a Portable Solar Reflec-tometerD 962 Specification for Aluminum Powder and Paste Pig-ments for PaintsD 4798 Practice for
6、 Accelerated Weathering Test Condi-tions and Procedures for Bituminous Materials (Xenon-Arc Method)D 6511 Test Methods for Solvent Bearing BituminousCompounds3. Classification3.1 Type INonfibered, containing no fiber.3.2 Type IIFibered, containing asbestos fiber.3.3 Type IIIFibered, containing no as
7、bestos fiber.4. Materials 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 D 962, with or without fiber added. They shall bemixed to a smooth, un
8、iform consistency suitable 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 40I
9、nsoluble in CS2, max, % of NVM 40 50Metallic aluminum, min, % 11 96. Physical Requirements Physical Requirements6.1 UniformityAfter a thoroughly stirred sample hasstood for 72 h at room temperature 23 6 2C (73.4 6 F) in aclosed container, it shall show no separation of solvent orsettling that can no
10、t be overcome by moderate stirring.6.2 ConsistencyThe 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 met
11、al surfaces at ambient temperatures above10C (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.6.2.2 Type II and Type IIIConsistency at 25C (77F)shall be between 15 and 90 Sto
12、rmer s/100 revolutions of thepropeller-type rotor with a 300-g load in addition to thestandardizing load.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.05on Solvent-Bearing Bituminous Compounds for
13、Roofing and Waterproofing.Current edition approved Aug. 1, 2006. Published August 2006. Originallyapproved in 1969. Last previous edition approved in 2004 as D 2824 04.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual
14、 Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.3 ReflectanceThe percent initial luminous reflectance ofcoatings, determined
15、 on samples before and after high tem-perature shelf aging, and after 1000 h accelerated weatheringtesting in accordance with Practice D 4798, shall be not lessthan 50 % when tested in accordance with Test MethodC 1549.7. Sampling7.1 See Section 4 of Test Methods D 6511.8. Test MethodsDetermine comp
16、osition and physical requirements by usingthe procedures in Test Methods D 6511.9. 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-
17、scribed in this specification 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 s
18、hall be packaged and 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;
19、 asbestos-fiber; asphalt; 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 p
20、atent rights, and 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 e
21、ither for revision 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 fai
22、r hearing you shouldmake 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).D2824062
