The cutback bitumen is homogeneous and will not foam (as observed visually) when heated to application temperature. The various grades of cutback bitumen (medium curing type) conform to requirements prescribed below:Grade : MC - 70MS 159 : 1994Specification for cutback Bitumen for use in the Construction And / or maintenance of Pavement (First Revision)
Specification for cutback Bitumen for use in the Construction And / or maintenance of Pavement