Performance-based classification of hot behavior of domestic bitumens using the BTSV method
Abstract
The European bitumen categorization is traditionally based on empirical tests, which are of limited suitability for the evaluation of modern, modified binders. In our research, we were the first to comprehensively apply the BTSV rheological method in Hungary on five bitumen types (B50/70, B70/100, GmB 45/80-55, PmB 25/55-65, PmB 45/80-65). We determined the TBTSV and δBTSV values on a total of 137 industrial samples and compared them with the ring-ball softening point. According to the results, the BTSV method characterizes the performance of modified binders more reliably and shows clearer differences between the types tested.
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