Estudo da resistência à tração por compressão diametral na estabilização de um solo da formação Guabirotuba com a utilização de resíduo de polimento cerâmico e cal

Abstract

The improper disposal of construction materials and the unbridled use of natural resources have caused a number of environmental problems and represent a persistent challenge today, especially for industries that manufacture ceramic materials. One of the most problematic stages is the polishing of ceramics, which generates large volumes of waste, consisting of ceramic fragments and abrasive substances used in the process. Given this scenario, there is a need to find sustainable solutions to reduce the disposal of this waste in landfills. One viable alternative is to exploit the properties of the so-called “Ceramic Polishing Residue” (CPR) and seek to reuse it to increase the resistance of natural soils. This study aims to analyze the feasibility of stabilizing soils by adding RPC and hydrated lime. Lime, in contact with wet soil, alters its characteristics, making it more resistant and less deformable under heavy loads. Diametral compressive strength tests were carried out to check the properties of the materials and mixtures after 28 days of curing. Most of the combinations tested, the addition of 3, 7 and 9% hydrated lime and 5, 10 and 15% RPC showed significant results, standing out as an effective option for optimizing the soil.