CASE STUDY: USE OF CONSTRUCTION AND DEMOLITION RESIDUES IN ROAD REPAIR WORK IN PIRACICABA-SP

Abstract

This paper refers to a case study of application of the mineral portion of Construction and Demolition Residues (CDR) originating from new construction, renovations, and demolition in the city of Piracicaba-SP. These residues are easily found on urban public areas, on hillsides, close to streams and in green or institutional areas, deposited in an irregular way, spoiling the urban scenery and also serving as a vector for the proliferation of diseases and contamination. The study concentrated on the mineral portion of CDR, refering to its physical, mechanical and chemical characteristics, with analyses for the detection of possible pollutants. A methodology is proposed: by adding a percentage of cement, it can be used to repave roads following maintenance work on the water supply and sewer system performed by SEMAE (Municipal Service of Water and Sewer). In this manner, this ‘product’ becomes a source of raw material for application, contributing to the preservation of the environment, reducing the removal of natural resources and the volume of inert fill, thus satisfying the demands of current legislation in force, which deals with the sustainable management of construction residues.