SUSTAINABLE CONCRETE APPLIED TO CIVIL CONSTRUCTION

Abstract

The project of this research analyzed, from the perspective of reducing the environmental impacts of the steel and construction sectors, the application of industrial solid waste of the steel industry - the steel slag - as aggregate for the manufacture of molded products in-place and prefabricated concrete used in the construction industry and also verify the degree of performance and environmental efficiency of these products for architecture and the built environment. To evaluate the feasibility of using the products, the project of model units of Housing of Social Interest (HiS), called Sustainable Village, was analyzed. The results obtained from the production, on a laboratory scale, of mortar, concrete, pavement blocks and masonry blocks served as an initial parameter for determining the applicability of the use of steel slag as an input of construction elements. For this purpose, the conformity of these products was verified, applied in HiS, based on the parameters established by the Performance Standard - NBR 15575 (ABNT, 2013) - specific for housing buildings and, additionally, meeting the requirements for certifications of sustainable buildings. Thus, the development of the research attested compliance with the technical and environmental parameters of the Performance Standard on the Sustainable Village project, in addition to indicating the economic viability of employment, of steel slag as an artificial aggregate, in integral replacement to natural aggregates, conventionally used civil construction.