GOST R 58400.8-2019 Automobile roads of general use. Petroleum-based bitumen binders. Method of determining the flexural creep stiffness at subzero temperatures using the bending beam rheometer (BBR)
1970GOST R 58400.8-2019 Automobile roads of general use. Petroleum-based bitumen binders. Method of determining the flexural creep stiffness at subzero temperatures using the bending beam rheometer (BBR)