本文件规定了表征沥青混合料阻力的单轴拉伸试验 防止低温开裂。单轴拉伸试验的结果可用于评估 以下内容: -使用单轴拉伸应力试验（UTST）在规定温度下的拉伸强度使用热应力约束的沥青在破坏前能抵抗的最低温度 样本测试（TSRST）；-规定温度下的抗拉强度储备（使用TSRST和UTST的组合）；-松弛时间，使用松弛试验（RT）；-使用拉伸蠕变试验（TCT）反算流变参数的蠕变曲线低温和机械载荷共同作用下的低温抗疲劳性， 使用单轴循环拉应力试验（UCTST）。交叉引用:EN 12697-33EN 12697-6EN 12697-27EN 12697-26购买本文件时可获得的所有现行修订均包含在购买本文件中。

This document specifies uniaxial tension tests for characterizing the resistance of an asphalt mixture against low temperature cracking. The results of the uniaxial tension tests can be used to evaluate the following: — tensile strength at a specified temperature, using the uniaxial tension stress test (UTST);— minimum temperature that the asphalt can resist before failure, using the thermal stress restrained specimen test (TSRST);— tensile strength reserve at a specified temperature (using a combination of TSRST and UTST);— relaxation time, using the relaxation test (RT);— creep curve to back calculate rheological parameters, using the tensile creep tests (TCT);— fatigue resistance at low temperatures due to the combination of cryogenic and mechanical loads, using the uniaxial cyclic tension stress tests (UCTST).Cross References:EN 12697-33EN 12697-6EN 12697-27EN 12697-26All current amendments available at time of purchase are included with the purchase of this document.