1、Designation: D2521/D2521M 76 (Reapproved 2014)1Standard Specification forAsphalt Used in Canal, Ditch, and Pond Lining1This standard is issued under the fixed designation D2521/D2521M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision
2、, 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.1NOTEUnits information was editorially corrected in January 2014.1. Scope1.1 This specification covers an oxidized p
3、etroleum asphalt,which, when applied in a sufficient thickness over a suitablesubgrade and covered with a suitable cover material, willprovide a satisfactory waterproof membrane for use as a canal,ditch, and pond lining.1.2 The values stated in either SI units or inch-pound unitsare to be regarded s
4、eparately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem should be used independently of the other. Combiningvalues in any way may result in non-conformance with thestandard.1.3 This standard does not purport to address all of thesafety concerns, if
5、any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D5 Test Method for Penetration of Bituminous Mat
6、erialsD6 Test Method for Loss on Heating of Oil and AsphalticCompoundsD92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD113 Test Method for Ductility of Bituminous MaterialsD140 Practice for Sampling Bituminous MaterialsD2042 Test Method for Solubility of Asphalt Materials inTric
7、hloroethyleneD2398 Test Method for Softening Point of Bitumen inEthylene Glycol (Ring-and-Ball) (Withdrawn 1984)33. Physical Requirements3.1 The asphalt shall not foam when heated to 205C400F, and shall conform to the requirements prescribed inTable 1.3.2 At the purchasers option, phosphorus pentoxi
8、de (P2O5)may be specified as a catalyst or blowing aid in the preparationof the membrane asphalt.4. Sampling and Test Methods4.1 Sample the material and determine the properties enu-merated in this specification in accordance with the followingmethods:4.1.1 SamplingPractice D140.4.1.2 Softening Poin
9、tTest Method D2398.4.1.3 PenetrationTest Method D5.4.1.4 DuctilityTest Method D113.4.1.5 Flash PointTest Method D92.4.1.6 Solubility in TrichloroethyleneTest Method D2042.4.1.7 Loss on HeatingTest Method D6.5. Inspection5.1 Inspection of the material shall be agreed upon betweenthe purchaser and the
10、 seller as part of the purchase contract.6. Rejection and Resubmittal6.1 Failure to conform to any of the requirements prescribedin this specification shall constitute grounds for rejection. Incase of rejection, the seller shall have the right to reinspect therejected material and resubmit the lot a
11、fter removal of thepackages not conforming to the requirements.7. Keywords7.1 bituminous materials; canal lining; ditch lining; mem-brane asphalt1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.03on S
12、urfacing and Bituminous Materials for Membrane Waterproofing and Built-upRoofing.Current edition approved Jan. 1, 2014. Published January 2014. Originallyapproved in 1966. Last previous edition approved in 2008 as D2521 76 (2008)DOI: 10.1520/D2521-76R14E01.2For referenced ASTM standards, visit the A
13、STM 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM Inter
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18、e 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
19、(www.astm.org/COPYRIGHT/).TABLE 1 Requirements for Asphalt for Use in WaterproofMembrane ConstructionProperty min maxSoftening point (ring and ball), C F 79 175 93 200Penetration of original sample, 0.1 mm:at 25C 77F, 100 g, 5 s 50 60at 0C 32F, 200 g, 60 s 30 .at 46C 115F, 50 g, 5 s . 120Ductility at 25C 77F, mm 35 .Flash point (Cleveland open cup), C F 218 425 .Solubility in trichloroethylene, % 97.0 .Loss on heating, % . 1.0Penetration after loss on heating, % oforiginal at 25C 77F, 100 g, 5 s60 .D2521/D2521M 76 (2014)12
