Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO T 301:2013
• Năm ban hành / Publication date: 2013
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Method of Test for Elastic Recovery Test of Asphalt Materials by Means of a Ductilometer
• Thay thế cho / Replace: AASHTO T 301:2011
• Số trang / Page: 5

Phạm vi áp dụng / Scope of standard

This method is used to determine the elastic recovery of asphalt material through the use of a ductilometer and briquet specimens. The specimens are pulled apart at a rate of 5 cm/min (2 in./min) and held after a specified elongation. The specimens are then severed at the center and allowed to recover undisturbed for 1 h. Unless otherwise specified, the test shall be performed at a temperature of 25 ± 0.5°C (77 ± 1.0°F).

The values stated in SI units are to be regarded as the standard.

This test may involve hazardous materials, operations, and equipment. This test does not purport to address all of the safety concerns 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.