1、Designation: D2824/D2824M 13D2824/D2824M 18Standard Specification forAluminum-Pigmented Asphalt Roof Coatings, Nonfibered,and Fibered without Asbestos1This standard is issued under the fixed designation D2824/D2824M; the number immediately following the designation indicates theyear of original adop
2、tion 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 U.S. Department of Defens
3、e.1. Scope1.1 This specification covers asphalt-based, aluminum-pigmented roof coatings suitable for application to roofing or masonrysurfaces by brush or spray.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may
4、 not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.3 The following precautionary caveat pertains only to the test method portion, Section 8, of this specification: This sta
5、ndarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of thisstandard to establish appropriate safety safety, health, and healthenvironmental practices and determine the applicability ofregulatory limitations prior to use.1
6、.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Tra
7、de (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C1549 Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar ReflectometerD962 Specification for Aluminum Powder and Paste Pigments for PaintsD4798D4798/D4798M Practice for Accelerated Weatherin
8、g Test Conditions and Procedures for Bituminous Materials(Xenon-Arc Method)D6511D6511/D6511M Test Methods for Solvent Bearing Bituminous Compounds3. Classification3.1 Type INonfibered, containing no fiber.3.2 Type IIIFibered, containing no asbestos fiber.4. Materials and Manufacture4.1 Asphalt-based
9、, aluminum-pigmented roof coatings shall consist of an asphalt base, volatile petroleum solvents, and a leafingtype of aluminum pigment conforming to the requirements of Specification D962, with or without fiber added. They shall be mixedto a smooth, uniform consistency suitable for application by b
10、rush, roller, or by spraying.5. Composition5.1 Asphalt-based, aluminum-pigmented roof coatings complying with this specification shall conform to the followingcomposition limits:1 This specification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct respon
11、sibility of Subcommittee D08.05 onSolvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved Nov. 1, 2013May 1, 2018. Published November 2013May 2018. Originally approved in 1969. Last previous edition approved in 20122013 asD2824 06 (2012)D2824/D2824M 13.1. DOI: 10.
12、1520/D2824_D2824M-13.10.1520/D2824_D2824M-18.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is
13、 not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropr
14、iate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Type I Type IIIWater, max, % 0.3 0.3Nonvolatile matter (NVM), mi
15、n, % 40 40Insoluble in CS2, max, % of NVM 40 50Metallic aluminum, min, % 11 96. Physical Requirements6.1 UniformityAfter a thoroughly stirred sample has stood for 72 h at room temperature 23 6 2C 73.4 6 F in a closedcontainer, it shall show no separation of solvent or settling that can not be overco
16、me by moderate stirring.6.2 ConsistencyThe roof coating shall be of a consistency that will spread readily and permit application by brush, roller, orspray to produce a film in which the aluminum pigment leafs to form a bright reflective surface on prepared roofing, saturated felt,and metal surfaces
17、 at ambient temperatures above 10C 50F.6.2.1 Type IConsistency at 25C 77F shall be between 20 and 30 Stormer s/100 revolutions of the paddle-type rotor witha 100-g load in addition to the standardizing load.6.2.2 Type IIIConsistency at 25C 77F shall be between 15 and 90 Stormer s/100 revolutions of
18、the propeller-type rotorwith a 300-g load in addition to the standardizing load.6.3 Solar ReflectanceThe percent initial luminous reflectance of coatings, determined on samples before and after hightemperature shelf aging, and after 1000 h accelerated weathering testing in accordance with Practice D
19、4798D4798/D4798M, shallbe not less than 50 % when tested in accordance with Test Method C1549.7. Sampling7.1 See Section 4 of Test Methods D6511D6511/D6511M.8. Test Methods8.1 Determine composition and physical requirements by using the procedures in Test Methods D6511D6511/D6511M.9. Inspection9.1 I
20、nspection of the material shall be as agreed upon between the purchaser and the seller as part of the purchase contract.10. Rejection and Resubmittal10.1 Failure to conform to any of the requirements prescribed in this specification may constitute grounds for rejection. In thecase of rejection, the
21、seller shall have the right to reinspect the rejected material and resubmit the lot after removal of thosepackages not conforming to the requirements.11. Packaging and Package Marking11.1 All products shall be packaged and labeled in accordance with applicable regulations. Each package shall be mark
22、ed toindicate the applicable ASTM International specification.12. Keywords12.1 aluminum-pigmented; asphalt; fibered without asbestos; nonfiberedASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of t
23、his standard are expressly advised that determination of the validity of any such patent 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 y
24、ears andif not revised, either reapproved or withdrawn.Your comments are invited either 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 commi
25、ttee, which you may attend. If you feel that your comments have not received a fair 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 194
26、28-2959,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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 182
