Tag Archives: Hrad Bitumen

Blown Bitumen 75/25 Summary of Blown Bitumen 75/25 Blown Bitumen 75/25 or Oxidized Bitumen or Blown Asphalt is produced by blowing hot air into the penetration bitumen. This action makes the bitumen more rubbery than its original formula and it becomes harder bitumen. This bitumen recovery the weight loss under heating. Due to low thermal […]