scope:

This document (prEN 12697-46:2008) describes uniaxial tension tests for characterising the resistance of an asphalt mixture against low temperature cracking. The results of the uniaxial tension tests can be used to evaluate: - the tensile strength in dependence of the temperature by uniaxial tension stress test (UTST); - the minimum temperature that the asphalt can resist before failure by thermal stress restrained specimen test (TSRST); - the tensile strength reserve in dependence of the temperature (by a combination of TSRST and UTST); - the relaxation time by the relaxation test (RT); - the creep curve to back calculate rheological parameters in tension state by tensile creep tests (TCT); and - the fatigue resistance at low temperatures due to the combination of cryogenic and mechanical loads by uniaxial cyclic tension stress tests (UCTST).