Estimativa da geração e destinação do resíduo da construção civil na cidade de Lavras, MG

Abstract

The generation and destination of construction and demolition residues (RCD) has worried the managing agencies during the last years. Rubbish from civil construction represents more and more a problem in the management of big cities, both for the amount generated and for the deposition of these materials. Its diagnosis is the basic premise for adopting recycling or reuse politics in the region. This paper aims to define the amount of construction and demolition residues (RCD) generated and transported in the town of Lavras, MG and to identify deposition areas and their monitoring. With data collection of the generated volumes and interviews with companies working in civil construction, a profile of RDC generators can be traced. Being so, from Conama´s resolution number 307, the necessity to create incentives to recycling in order to minimize environmental impacts was verified. This material has been seen as of great use in civil construction industries, been used as an aggregate for concretes and mortar and pavement work. The technology for recycling this residue is still incipient and needs to be consolidated, mainly if we observe the particularities of the rubbish generated in the country. The estimated amount of RCD in the town of Lavras was 56t/day for the studied period. Ten deposition areas were checked; only two of them were authorized. It was also evidenced that the generation of RCD is, mostly, from small works, and the construction companies have not gotten the mastering of reducing losses on their own workplaces. In public management a management system which applies collect, handling and correct destination techniques for RDC is necessary. Based on costs a recycling factory that attends the demand of the town and region was considered viable.