1.1 This test method covers quantitative procedures for determining a failure point in load cycles that is related to the crack failure of bituminous mixture samples subjected in the laboratory to repeated direct-tension loads using the Overlay Tester. Test specimens ranging in height from 0.5 to 1.5 in. (12 to 38 mm) fabricated from laboratory compacted asphalt concrete, field cores, and/or sawn slabs are used. 1.2 Units--The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.4 The text of this standard references notes and footnotes, which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
Include more specimen preparation details along with details for using the device to test HMA materials. Other bituminous materials such as microsurfacing, slurry, cold-in-place recycled materials, and hot-in-place recycled materials may be added at a later date.
asphalt; bituminous; reflective cracking;; overlay tester:
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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