Oxidized bitumen 95/25 factory
According to a preferred method of execution, the oxidized bitumen 95/25 used in making the bituminous matrix has a ring and ball softening point, defined as set forth in the NF standard T 66008, ranging between 60° C. and 120° C.
Oxidized bitumen 95/25 is produced by the air-blowing of penetration grade bitumen. This is done at high temperatures, resulting in a material of a much higher penetration index. Bitumen 95/25 is based on petroleum bitumen which is made by blowing bitumen 60/70 by very hot air.