Cut-Back binders for road construction and surface dressing : a comparative study of fluxing oils used in the production of cut-back binders

The main objective of the study was to compare the properties of fluxing oils derived from coal tar and petroleum oil used in cut-back road binders, with regard to the safety in use for the protection of workers. In particular studies were conducted on ignition properties and the toxicological aspect of genetic mutation and cancer. As a subsidiary objective the development of a method of discrimination between fluxing oils derived from coal tar and petroleum oil sources was sought.