Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: AASHTO T 369:2017
• Năm ban hành / Publication date: 2017
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Method of Test for Evaluation of the Low-Temperature Tensile Property of Hot-Poured Asphalt Crack Sealant by Direct Tension Test
• Số trang / Page: 10

Phạm vi áp dụng / Scope of standard

This test method applies to hot-poured asphalt crack sealant used in the construction and maintenance of roadways as specified in MP 25 and PP 85.

The test method is used to determine the extendibility and strain energy density (SED) of sealants at low temperature. It can be used with unaged material or with material aged according to T 367. The test apparatus is designed for testing within the temperature range from -4 to -40°C.

This standard covers the determination of extendibility and percent modulus decay in hot-poured asphalt crack sealant with the use of direct tension testing and by applying the tensile stress-strain test.