ASTM D2521/D2521M-76 (R2021) pdf free download.Standard Specification for Asphalt Used in Canal, Ditch, and Pond Lining.
1.1 This specification covers an oxidized petroleum asphalt which, when applied in a sufficient thickness over a suitable subgrade and covered with a suitable cover material, will provide 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 units are to be regarded separately as standard. The values stated in each system may not be exact equivalents: therefore, each system should be used independently of the other. Combining values in any way may result in nonconformance with the standard.
2. Referenced I)ocurnents
2.1 ASTM Standards:
D5/D5M Test Method for Penetration of Bituminous Materials
D6/D6M Test Method fbr Loss on Heating of Oil and Asphaltic Compounds
D92 Test Method for Flash and Fire Points by Cleveland Open Cup Tester
D113 Test Method for Ductility of Asphalt Materials
3. Physical Requirements
3.1 The asphalt shall not foam when heated to 205 °C [400 °FJ, and shall conform to the requirements prescribed in Table 1.
3.2 At the purchaser’s option, phosphorus pentoxide (P,05) may he specifIed as a catalyst or blowing aid in the preparation of the membrane asphalt.
4. Sampling and Test Methods
4.1 Sample the material and determine the properties enumerated in this specifIcation in accordance with the following methods:
4.1.1 Sampling—Practice D140/D140M.
4.1.2 Softening Point—Test Method D2398.
4. 1 .3 Penetration—Test Method D5/D5M.
4.1.4 Ductility—Test Method D 113.
4.1.5 Flash Point—Test Method D2.
4. 1 .6 Soluhiliiv in Trichloroethvlene—Test Method D2042.
4.1.7 Loss on Healing—Test Method D6/D6M.
5. Inspection
5.1 Inspection of the material shall he agreed upon between the purchaser and the seller as part of the purchase contract.
6. Rejection and Resubmittal
6.1 Failure to conform to any of the requirements prescribed in this specification shall constitute grounds for rejection. In case of rejection. the seller shall have the right to reinspect the rejected material and resubmit the lot after removal of the packages not conforming to the requirements.
7. Keywords
7.1 bituminous materials; canal lining: ditch lining; membrane asphalt.ASTM D2521/D2521M pdf download.