ASSESSMENT OF THE ROAD BINDERS PROPERTIES AT LOW TEMPERATURES BY THE ABCD METHOD
The paper considers the possibility of applying a new method for determining the crack resistance temperature of bituminous binders (ABCD), which allows in experiments, as close as possible to real operating conditions, to assess the influence of natural and climatic parameters on the complex of low-temperature properties of binders and coatings based on them. The ABCD method has already been adopted as a standard method for testing the low-temperature properties of bitumen and polymer-bitumen binders in Europe, North America and Russia. The results presented in this study of quantitative determination of performance indicators (cracking temperature) of bituminous binders of various compositions at low temperatures by the direct method fully confirm the previously proposed assumptions about the need for a physical and chemical justification of the applicability of exact methods in the road industry. This will allow to carry out a feasibility study of the application of advanced binders in the construction of roads of different levels of subordination. The obtained data showed a significant correlation of low-temperature indicators of binders with the composition and structure of butadiene styrene thermoplastic elastomers used.