Specialty and Custom Blended Asphalts
Asphalt Cements are often mixed with certain diluents or cutter stock, allowing for various properties to be achieved during product application, such as workability of certain mixes, as well as penetrating properties during field application. When a diluent or cutter stock is added to asphalt cement, this is commonly referred to as an Asphalt Cutback. To a degree, the liquidity of a cutback may be affected by the hardness of the base asphalt, some quite fluid at ordinary temperatures, and others somewhat more viscous; however the primary degree of liquidity depends on the portion of solvent to asphalt cement.
Petroleum solvents used for dissolving asphalt cement are variously called distillate, diluent, or cutter stock. If the solvent used in making the cutback asphalt is highly volatile, it will quickly escape by evaporation. Solvents of lower volatility evaporate more slowly. On the basis of the relative speed of evaporation, cutback asphalts are divided into three categories.
Petroleum solvents used for dissolving asphalt cement are variously called distillate, diluent, or cutter stock. If the solvent used in making the cutback asphalt is highly volatile, it will quickly escape by evaporation. Solvents of lower volatility evaporate more slowly. On the basis of the relative speed of evaporation, cutback asphalts are divided into three categories.