ABSTRACT
This work was aimed at evaluating both mechanical and rheological behaviour of cementitious ioint mortars prepared with three different kinds of recycled aggregate: one is made of concrete scraps obtained as rejected material from precast concrete production, one is based on recycled bricks and the last one is a miscellany of rubble from a demolition waste recycling plant. The experimental results showed that mechanical strength of the mortars prepared by substituting the natural sand with each one of these recycled aggregates is significantly lower than the reference. Nevertheless, the bond strength at the interface between mortar and brick was higher for mortars prepared with recycled aggregates and, in particular, when the fine aggregate demolition waste recycling was used.
