Since 1989, ESSO and VIAFRANCE companies have been conducting a joint research program on polymer modified bitumens. Conventional tests have been applied to these products, as well as more specific tests allowing a more detailed study of the behaviour of these heterogeneous binders of some of their complementary properties. The research program was constructed with a complete matrix of perfectly well controlled PMBs (chemical nature and content of bitumen and polymer, mixing conditions) (1). This paper presents conclusions about these tests and some representative examples. (A)
Abstract