Oil sands, tar sands, crude bitumen, or bituminous sands, are a type of unconventional petroleum deposit. Oil sands are either loose sands or partially consolidated sandstone containing a naturally occurring mixture of sand, clay, and water, soaked with bitumen, a dense and extremely viscous form of petroleum.

➢OIL BITUMINOUS BINDERS (PNST 85-2016):

Bituminous binders tend to harden during the mixing process and with age, which necessitates the addition of a softer binder to restore the equivalent properties as required under the original specification.

➢PG 52-46; PG 58-40; PG 64-34; PG 64-40; PG 70-28; PG 70-34; PG 76-28; PG 76-22