W Rapid curing RC cutback bitumen
We make the Rapid Curing Cutback Bitumen by reducing the viscosity of and ordinary bitumen by adding mostly petroleum type solvent. We use the Cutback Bitumen because their viscosity is lower than that of neat asphalt and can thus be used in low temperature applications.
Cutback asphalt is said to “cure” as the petroleum solvent evaporates away. The use of cutback asphalts is decreasing because of:
•Environmental regulations. Cutback asphalts contain volatile chemicals that evaporate into the atmosphere. Emulsified asphalts evaporate water into the atmosphere.
•Loss of high energy products. The petroleum solvents used require higher amounts of energy to manufacture and are expensive compared to the water and emulsifying agents used in emulsified asphalts.
RC cutback bitumen:
After a RC cutback is applied the solvent evaporates away and only the Bitumen is left. We say cure as the petroleum solvent evaporates to a rapid curing cutback bitumen.
The specification for Rapid Curing (RC) Cutback Asphalts applies to liquid asphaltic materials in the form of asphalt cement combined with a petroleum solvent of a gasoline type. RC Cutback Asphalts are specified by the following grades: RC-70, RC-250, and RC-800. Rapid Curing Cutback Asphalt shall consist of asphalt cement which has been liquefied by blending with a gasoline type of petroleum solvent.
Cutback bitumen rapid curing:
We use Rapid curing Cutback bitumen are typically as prime coats and tack coats. Generally Cutback Bitumen divid into three groups depending on their volatility of the solvent added:
Liquid rapid curing bitumen:
We prepare The rapid curing cutback bitumen products with a light, rapidly evaporating diluent such as a naphtha or gasoline.
Bitumen RC packing:
PUB_LTD bitumen RC packed in new steel drums. This drums will palatalize before loading.