Análise do aproveitamento de resíduo da lapidação do granilite na confecção de tijolos de solo-cimento

Abstract

The increase in waste generation in civil construction represents a major environmental problem, especially with the inadequate disposal of materials, such as waste from granite polishing (RLG). In this work, the possibility of using RLG in the manufacture of soil-cement bricks, which are a more sustainable alternative to traditional bricks, was explored. Based on the approach adopted and the theoretical foundations, this research is classified as documentary, with a qualitative nature, using field, descriptive and laboratory research. Soil-cement brick is an interesting alternative for sustainable constructions, as it does not require the use of ovens in its manufacture, and does not emit carbon dioxide (CO2) into the atmosphere. The tests in this research were carried out with 5%, 10% and 15% of RLG, added in relation to the mass of cement in the brick mixture, seeking to verify how this residue affected the following categories: resistance, water absorption, dimensions and void index. It was observed that the RLG had potential to reduce the void index and remained within the water absorption parameters, however, the manufactured bricks did not reach the minimum required strength, of 2.0 MPa on average and 1.70 MPa individually. However, the use of waste in construction helps to reduce environmental impacts and makes the sector more sustainable.