Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO T 314:2012
• Năm ban hành / Publication date: 2012
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Method of Test for Determining the Fracture Properties of Asphalt Binder in Direct Tension (DT)
• Thay thế cho / Replace: AASHTO T 314:2007
• Số trang / Page: 18

Phạm vi áp dụng / Scope of standard

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 (RTFOT) or R 28 (PAV), or both. The test apparatus is designed for testing within the temperature range from +6 to -36°C.

This test method is limited to asphalt binders containing particulate material having dimensions less than 250 μm.

This test method is not valid for specimens exhibiting a failure strain of greater than 10 percent considered outside the brittle-ductile range.

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.