Standard Method of Test for
AASHTO Designation: T 314-07
SCOPE
1.1.This test method covers the determination of the failure strain and failure stress of asphalt binders by means of a direct tension test.
It can be used with unaged or aged material using T 240
(RTF OT), R 28 (PAV). The test apparatus is designed for testing within the temperature range from +6 to -36°C.
1.2.This test method is limited to asphalt binders containing particulate material having dimensions less than 250 µm.
1.3.This test method is not valid for specimens exhibiting a failure strain of greater than l O percent considered outside the brittle-ductile range.
1.4.This standard may involve hazardous materials, operations, and equipment.
This standard does not purport to address all of the safety concerns associated with its use.
It is the responsibility of the user of this procedure to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
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