1、Designation: D2824/D2824M 06 (Reapproved 2012)1D2824/D2824M 13Standard 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 designati
2、on 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.This standard has been approved for use by agen
3、cies of the Department of Defense.1 NOTEUnits information was editorially corrected in August 2012.1. Scope1.1 This specification covers asphalt-based, aluminumaluminum-pigmented roof coatings suitable for application to roofing ormasonry surfaces by brush or spray.1.2 The values stated in either SI
4、 units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may 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
5、precautionary caveat pertains only to the test method portion, Section 8, of this specification: This standarddoes 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 and health pract
6、ices and determine the applicability of regulatory limitations prior to use.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 P
7、aintsD4798 Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)D6511 Test Methods for Solvent Bearing Bituminous Compounds3. Classification3.1 Type INonfibered, containing no fiber.3.2 Type IIFibered, containing asbestos fiber.3.2 Type IIIFib
8、ered, containing no asbestos fiber.4. Materials and Manufacture4.1 Asphalt-based, aluminumaluminum-pigmented roof coatings shall consist of an asphalt base, volatile petroleum solvents,and a leafing type of aluminum pigment conforming to the requirements of Specification D962, with or without fiber
9、added. Theyshall be mixed to a smooth, uniform consistency suitable for application by brush, roller, or by spraying.5. Composition5.1 Asphalt-based, aluminumaluminum-pigmented roof coatings complying with this specification shall conform to thefollowing composition limits:1 This specification is un
10、der the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.05 onSolvent-Bearing Bituminous Compounds for Roofing and Waterproofing.Current edition approved Aug. 15, 2012Nov. 1, 2013. Published August 2012November 2013. Originally appr
11、oved in 1969. Last previous edition approved in 20062012as D2824 06.D2824 06 (2012)1. DOI: 10.1520/D2824_D2824M-06R12E01.10.1520/D2824_D2824M-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsv
12、olume information, refer to the standards Document Summary page on the ASTM website.This document is 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 ad
13、equately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. 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 Conshoh
14、ocken, PA 19428-2959. United States1Type I Type II orType IIIType I TypeIIIWater, max, % 0.3 0.3Nonvolatile matter (NVM), min, % 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
15、temperature 23 6 2C 73.4 6 F in a closedcontainer, it shall show no separation of solvent or settling that can not be overcome 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
16、 which the aluminum pigment leafs to form a bright reflective surface on prepared roofing, saturated felt,and metal surfaces 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 addi
17、tion to the standardizing load.6.2.2 Type II and Type IIIConsistency at 25C 77F shall be between 15 and 90 Stormer s/100 revolutions of thepropeller-type rotor with a 300-g load in addition to the standardizing load.6.3 ReflectanceThe percent initial luminous reflectance of coatings, determined on s
18、amples before and after high temperatureshelf aging, and after 1000 h accelerated weathering testing in accordance with Practice D4798, shall be not less than 50 % whentested in accordance with Test Method C1549.7. Sampling7.1 See Section 4 of Test Methods D6511.8. Test Methods8.1 Determine composit
19、ion and physical requirements by using the procedures in Test Methods D6511.9. Inspection9.1 Inspection 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 prescr
20、ibed in this specification may constitute grounds for rejection. In thecase of rejection, the 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
21、 be packaged and labeled in accordance with applicable regulations. Each package shall be marked toindicate the applicable ASTM International specification. Packages containing product meeting Type II shall bear a statement thatthe product contains asbestos.12. Keywords12.1 aluminum-pigmented; asbes
22、tos-fiber; 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 this standard are expressly advised that determination of the validity of any such patent
23、 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 either
24、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 fair hear
25、ing 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
26、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 132
