Estudo das propriedades físicas de paver a partir da adição de resíduo de vidro
2020
This work contemplates a case study of the manufacture of paving pieces using glass waste to replace cement and sand. Glass is a material that has a high transport cost when compared to other solid waste, and this causes it to be discarded irregularly in garbage dumps, landfills, or thrown out on the streets. The technical feasibility of using this waste has the potential to reduce the environmental impact caused by glass. In this context, the present work aims to determine the effects of replacing sand and cement with glass residue on the mechanical properties of concrete pieces for paving in the city of Rio das Ostras-RJ. The glass was separated, crushed and subsequently added to cement, sand, stone powder and gravel 0 for making two traces of the specimens, which have 5% and 9% of glass, denominated 1: 4 and 1 : 5 respectively. Then tests were carried out to compare the compressive strength, water absorption and cement consumption of these two dosages with the regulatory standards for paving pieces. The results showed that the line with the largest amount of glass presented better results, complying with the ABNT NBR 9781 (2013) standard.
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