FROM CIVIL CONSTRUCTION WASTE TO RECYCLED AGGREGATE USED IN STRUCTURAL CONCRETE

Abstract

The residues from the construction industry has grown visibly worldwide, being not  different in the city of João Pessoa, capital of the state of Paraíba. This fact constitutes a serious problem for the construction sector, the supervisory bodies, the population and the environment. In this context, this paper presents associated results of research carried out in the logistics area of waste, studying the generation and destination of the CCW and in the recycling area, studying the use of aggregates in structural elements of recycled concrete (precast slab). In these recycled concretes of Fck = 25MPa, several dosages were evaluated, the concrete with 75% replacement of natural aggregate by recycled aggregate was evaluated. It is intended that the result of this work contributes to the study of the life cycle of the raw material reused in the construction industry, ratifying ways to reduce the consumption of these components making the action of civil construction in the environment more sustainable.