Influência do teor e da granulometria de resíduo de poliuretano na produção de argamassa

Abstract

Developing at a fast pace, the world has suffered from accumulations of waste. These residues come from all areas, which means that measures have been obtained for years. Laws, standards, studies and research are connected to reduce the environmental impact. therefore, alternatives that can seek to solve not only problems in one area, but also other areas at the same time. Mortar and concrete use a lot of natural resources and generate a lot of waste as well. Another environmental problem is the waste from refrigerators that are increasing over the years. This work seeks to analyze the use of mortars with the use of refrigerator residues and their properties. A reference trace was made and the fine aggregate was subsequently replaced by polymer residues from the refrigerators, in the proportions of 2.5%, 5% and 10% and changing its granulometry in two groups. Tests were performed as: resistance to axial compression, water absorption, voids index, specific mass, dynamic elastic modulus. Through the literature it was already possible to expect a decrease in resistance, but with an incorporation of 2.5% results close to the reference trace were found. Even with a different result of 2.5%, the 5% strokes are also satisfactory complementary measures, since the main focus of the work is an alternative for the reuse of waste. It is concluded that it is possible to use 2.5% and 5% for use purposes.