Utilização de resíduos agroindustriais no concreto : uso do bagaço de cana-de-açúcar

Abstract

The cement industry, with its cement production process, and the agro-industry, with its production and disposal of tons of waste, have been responsible for worsening emissions of pollutants and waste, contributing to global pollution. In view of the need to think about sustainability and new alternatives for the use and reuse of materials in civil construction, a literature review was carried out using a qualitative approach to understand the use of agro-industrial waste in concrete, especially ash from sugarcane bagasse (CBCA). Scientific articles, dissertations, monographs and course completion papers, in English and Portuguese, published in CAPES databases and government websites that answered the question were used. It was verified, in the course of the research, that the addition of CBCA can improve the compressive and tensile strength of concrete. However, negative results were also found in relation to the strength gain of the mechanical characteristics of the concrete, indicating the need for more in-depth studies. It is concluded that the CBCA has the potential to reduce the disposal of agro- industrial waste and contribute to the production of a more sustainable concrete, but its effectiveness should be investigated in more detail.