THE INFLUENCE OF RECYCLED CONCRETE AGGREGATE ON THE PROPERTIES OF SELF – COMPACTING CONCRETE

Abstract

In the last years, due to the environmental protection and sustainable development requirements becoming stricter and broader, a large number of researches worldwide has been conducted mainly focused on the potential of application of the old concrete as an aggregate for production of conventionally vibrated or self – compacting concrete. The presence of old cement mortar significantly affects a number of physical and mechanical properties, of both recycled aggregate and concrete with recycled aggregate. Available data from the literature, and own previous researches are used in this paper to show the influence of recycled concrete aggregate on the characteristics of self – compacting concrete in the fresh and in the hardened state.