Absorção de água e resistência mecânica de compósitos de poliuretano e resíduo de cerâmica vermelha da construção civil

• Autor(a) principal: Mendonça, Bruno Afonso Büchele
• Data de Publicação: 2020
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Universitário da Ânima (RUNA)
• Texto Completo: https://repositorio.animaeducacao.com.br/handle/ANIMA/4646
• topic: Poliuretano; Tijolo; Resíduo

The use of Polyurethane in civil construction has increased continuously and significantly in recent times. One of the reasons for this is its easy handling and transport, as it is a light product. Currently used in places with a need for acoustic sealing, such as party houses, hospitals and recording studios, such as polyurethane plates, mechanical resistances must be used so as not to break during the transport and handling process in the places where it is installed. Commonly used between building structures, for example, between two masonry walls or between two metal profiles, it is at risk of contact with moisture or even with leakage infiltration, therefore, a low material water humidity is useful to maintain its physical integrity and time of use. This study analyzed the incorporation of 10%, 20%, 30% and 40% of the brick residue in polyurethane, matrix formed by Polyol and Isocyanate for comparison with polyurethane. Based on the tests of resistance to mechanical compression, it was found that the addition of brick residue to resistance to mechanical compression (maximum stress), but meets the minimum requirements required by NBR 8082 and ASTM D1621—16. The apparent specific mass of the composites was very close to the polyurethane sample and the rate of expansion of the reaction decreased as the incorporated waste mass was applied. The water absorption increased as the mass of incorporated waste was added. Then obtaining a new way of using brick waste, which is mass produced excessively in the civil construction industry.