1、Designation: D 2521 76 (Reapproved 2008)Standard Specification forAsphalt Used in Canal, Ditch, and Pond Lining1This standard is issued under the fixed designation D 2521; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、 last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers an oxidized petroleum asphalt,which, when applied in a sufficient thickness over a suitable
3、subgrade 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 SI units are to be regarded asstandard. The values given in parentheses are mathematicalconversions to inch-pound units that are prov
4、ided for informa-tion only and are not considered standard.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 establish appro-priate safety and health practices and determine the applica-bi
5、lity of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D5 Test Method for Penetration of Bituminous MaterialsD6 Test Method for Loss on Heating of Oil and AsphalticCompoundsD92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD113 Test Method for Ducti
6、lity of Bituminous MaterialsD 140 Practice for Sampling Bituminous MaterialsD 2042 Test Method for Solubility of Asphalt Materials inTrichloroethyleneD 2398 Discontinued 1985; Test Method for SofteningPoint of Bitumen in Ethylene Glycol (Ring-and-Ball);Replaced by D 3633. Physical Requirements3.1 Th
7、e asphalt shall not foam when heated to 205C(400F), 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 aid in the preparationof the membrane asphalt.4. Sampling and Test Methods4.1 Sample the m
8、aterial and determine the properties enu-merated in this specification in accordance with the followingmethods:4.1.1 SamplingPractice D 140.4.1.2 Softening PointTest Method D 2398.4.1.3 PenetrationTest Method D5.4.1.4 DuctilityTest Method D113.4.1.5 Flash PointTest Method D92.4.1.6 Solubility in Tri
9、chloroethyleneTest Method D 2042.4.1.7 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 contract.6. Rejection and Resubmittal6.1 Failure to conform to any of the requirements prescribedin this s
10、pecification 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 to the requirements.7. Keywords7.1 bituminous materials; canal lining; ditch lining; mem-brane
11、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 Waterproofing and Built-upRoofing.Current edition approved Nov. 1, 2008. Published November
12、 2008. Originallyapproved in 1966. Last previous edition approved in 2002 as D 2521 76(2002)12For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document
13、Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validi
14、ty 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 subjec
15、t 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 standard or for additional standardsand should be addressed to ASTM International Headquarte
16、rs. 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
17、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 may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or service
18、astm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 1 Requirements for Asphalt for Use in WaterproofMembrane ConstructionProperty min maxSoftening point (ring and ball), C (F) 79 (175) 93 (200)Penetration 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 .D 2521 76 (2008)2
