1、Designation:D2521/D2521M76(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,the ye
2、ar 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 petroleum asph
3、alt,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 separately as sta
4、ndard.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 any,associated with i
5、ts 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 MaterialsD6 Test Method for
6、 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 inTrichloroethyleneD2398 Test
7、Method for Softening Point of Bitumen inEthylene Glycol(Ring-and-Ball)(Withdrawn 1984)33.Physical Requirements3.1 The asphalt shall not foam when heated to 205C400F,and shall conform to the requirements prescribed inTable 1.3.2 At the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 pentoxide(P2O5)may be specified as a
8、 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 PointTest Method D2398.4.1.3 Penetr
9、ationTest 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 seller as part of the purchase
10、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 after removal of thepackages not con
11、forming 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 Surfacing and Bituminous Materials for M
12、embrane 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 ASTM website,www.astm.org,orcontact ASTM Custome
13、r 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 International,100 Barr Harbor Drive,PO Box C700,West Con
14、shohocken,PA 19428-2959.United States1 ASTM 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 ri
15、skof 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 for revision of this
16、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 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 St
