DIN Standards Committee Building and Civil Engineering
DIN EN 12697-46
Bituminous mixtures - Test methods for hot mix asphalt - Part 46: Low temperature cracking and properties by uniaxial tension tests; German version EN 12697-46:2012
Asphalt - Prüfverfahren für Heißasphalt - Teil 46: Widerstand gegen Kälterisse und Tieftemperaturverhalten bei einachsigen Zugversuchen; Deutsche Fassung EN 12697-46:2012
Overview
This European Standard specifies 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 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); and - fatigue resistance at low temperatures due to the combination of cryogenic and mechanical loads, using the uniaxial cyclic tension stress tests (UCTST). The committee responsible for this standard is NA 005-10-10 AA "Asphalt (SpA zu CEN/TC 227/WG 1) Gemeinschaftsausschuss mit FGSV" ("Bituminous mixtures (Mirror Committee of CEN/TC 227/WG 1) Joint committee with FGSV") at DIN.