ANÁLISE DO DESEMPENHO DE PISOS INTERTRAVADOS COM A INCORPORAÇÃO DE AREIA DE FUNDIÇÃO PRODUZIDOS EM ESCALA INDUSTRIAL
DOI:
https://doi.org/10.46421/entac.v18i.694Keywords:
Foundry sand, Alternative material, Industrial wasteAbstract
The development of eco-efficient systems is the search for solutions to waste materials that have potentializing properties for the production of prefabricated products in civil construction. Foundry sand is one of the residues from the mold of molten metal parts. Its correct disposal is industrial landfills, however, these generate cost of preparation and maintenance, in addition to environmental concerns. In this context, the study aims to produce pavement floors interlocked with foundry sand to replace natural sand at levels of 0%, 2.5%, 5.0%, 10.0% and 20.0%, analyzing its performance in terms of water absorption and resistance to compression at 7 and 28 days. The mixing and production of the floors was carried out in an automated system, later, laboratory tests were applied as recommended by NBR 9781 (2013). With the results it was possible to verify that all floors with incorporation of foundry sand remained within the limits determined by NBR 9781 (2013), that is, with water absorption below 6% and compressive strength above 35 MPa at 28 days. Therefore, it is concluded that floors interlocked with foundry sand are presented as alternative sustainable materials in the construction industry.
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