SR EN 12272-3:2025

This document specifies, for anhydrous bituminous binder (cut-back and fluxed bituminous binders), the measurement of the binder aggregate adhesivity and the influence of adhesion agents or interfacial dopes on adhesion characteristics. This is to help designing binder aggregate systems for surface dressing. This document specifies methods of measurement of: — the mechanical adhesion of the binder to the surface of the aggregate; — the active adhesivity of the binder to the chippings; — the improvement of the mechanical adhesion and active adhesivity by adding an adhesion agent either into the mass of the binder or by spraying the interface between binder and chippings; — the wetting temperature of the binder to the aggregate; — the variation of adhesivity below the fragility temperature. The wetting capacity of the binder affects the adhesivity properties. With the presence of water, the wetting capacity of bitumen emulsion is naturally high. Even if mechanical adhesion and active adhesivity test methods are mainly dedicated to anhydrous bituminous binders (cut-back and fluxed bitum