The mechanical properties, given by bitumen make an ideal waterproofing contribution to roof constructions, as well as to their ability to withstand significant structural movements. Bitumen is known as a material, which retains properties over long periods, so it significantly contributes to a structure's durability and longevity.
Roofing oil asphalt is used in production of roofing materials. It is produced at Bitumen Unit vie continuous oxidation of black-oil vacuum distillation bottoms with atmospheric oxygen.
MAIN TECHNICAL PARAMETERS
Needle penetration depth at 25°C, 0,1 mm
Melting point, °C
Solubility in benzene and chloroform, % min.
Weight alteration after heating, % max.
Needle penetration depth at 25°C in residue after heating, % of initial value, min.