This European Standard describes a procedure for the determination of the affinity between aggregate and bitumen, expressed by visual registration of the degree of bitumen coverage on uncompacted bitumen-coated mineral aggregate particles after influence of mechanical stirring action in the presence of water.
This method can be used to evaluate the effect of moisture with or without adhesion agents including liquids, such as amines, and fillers, such as hydrated lime or cement, and the moisture effect on different aggregate for the same binder.
NOTE If the aggregate to be tested is susceptible to abrasion, the water sensitivity test EN 12697-12 is alternatively recommended to avoid influence from aggregate abrasion during the specified rolling procedure.