COMPÓSITO DE SOLO-CIMENTO E RESÍDUOS DE CONSTRUÇÃO E DEMOLIÇÃO: PERSPECTIVAS DE MATERIAIS SUSTENTÁVEIS.

Abstract

In search of improvements in housing problems, the federal government has invested in programs and public policies to meet the needs of the population. In this process, the construction industry uses materials that have negative impacts on the environment, such as the generation of high amounts of waste. On the other hand, innovations in constructive elements, through the principles of design, can contribute to sustainability. Thus, the objective of the research is the technical evaluation of a composite formed by soil-cement and construction and demolition residues (CRD), aiming at the future application in sealing blocks for popular dwellings in the Island of São Luís - MA. In this way, the research carries out a bibliographical review relating the themes of product design, materials and sustainability. This relationship supports the relevance of studies of composites in the area of design that provide the recycling of construction waste. For the verification of the hypothesis of an efficient and sustainable material for the local reality, different compositions of soil-cementconstruction residue and demolition (CRD) were developed for the preparation of test specimens, which are subjected to the analysis of technological properties. Following the guidelines of the standards, the selected trials for this research are: soil particle size analysis, linear retraction test, compressive strength test and water absorption test. With the positive results obtained, it was concluded the feasibility of applying certain compositions for later confection of blocks as an alternative to the ceramic blocks traditionally used.