STUDY OF THE PROCESSES OF AGING OF VISCOUS BITUMEN AND SOME ASPECTS OF THEIR REDUCTION
The results of the study of aging processes occurring viscous road bitumen by mixing them with a hot stone material by ASTM 1754 / D 1754 M - 09 (test method in a thin film of bitumen before and after heating). It is shown that the regulated GOST 22245-90 performance properties of bituminous binders do not reflect the actual operating conditions of road surfaces and require adjustment to nor- mal values in accordance with the actual conditions. Marked by fundamental differences of regulatory requirements for road bitumen abroad and in our country and the need to develop proposals for har- monization of requirements for domestic bitumen to the European standards.