1、Designation:D2521/D2521M76(Reapproved 2021)Standard 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,the yea
2、r 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.1.Scope1.1 This specification covers an oxidized petroleum asphaltwhich,when applied in a sufficient thickness over a suitablesub
3、grade 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 separately as standard.The values stated ineach system may not be exact equivalents;
4、therefore,eachsystem should be used independently of the other.Combiningvalues in any way may result in nonconformance with thestandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to estab
5、lish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles fo
6、r theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D5/D5M Test Method for Penetration of Bituminous Mate-rialsD6/D6M Test Method for Loss on Heating of Oil a
7、ndAsphaltic CompoundsD92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD113 Test Method for Ductility of Asphalt MaterialsD140/D140M Practice for Sampling Asphalt MaterialsD2042 Test Method for Solubility of Asphalt Materials inTrichloroethyleneD2398 Test Method for Softening Poin
8、t of Bitumen inEthylene Glycol(Ring-and-Ball)(Withdrawn 1984)33.Physical Requirements3.1 The asphalt shall not foam when heated to 205 C400 F,and shall conform to the requirements prescribed inTable 1.3.2 At the purchasers option,phosphorus pentoxide(P2O5)may be specified as a catalyst or blowing ai
9、d 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/D140M.4.1.2 Softening PointTest Method D2398.4.1.3 PenetrationTest Method
10、D5/D5M.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/D6M.5.Inspection5.1 Inspection of the material shall be agreed upon betweenthe purchaser and the seller as part of the purchase contract.
11、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 after removal of thepackages not conforming t
12、o 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 Surfacing and Bituminous Materials for Membrane W
13、aterproofing and Built-upRoofing.Current edition approved Jan.1,2021.Published January 2021.Originallyapproved in 1966.Last previous edition approved in 2014 as D2521/D2521M 76(2014)1.DOI:10.1520/D2521-76R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer S
14、ervice 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 International,100 Barr Harbor Drive,PO Box C700,West Consho
15、hocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organiz
16、ation Technical Barriers to Trade(TBT)Committee.1ASTM 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 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
