Desenvolvimento de tijolos cerâmicos ecológicos com adição de escória de alto forno

• Autor(a) principal: Santos, Ana Carolina Villela Vieira dos [UNESP]
• Data de Publicação: 2016
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/155348; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-04-13/000882088.pdf
• topic: Ceramica (Tecnologia); Resistência de materiais; Tijolos; Escoria; Bricks

IFor the construction industry the use of burnt clay bricks is still high, but on the one hand, it consumes large amounts of energy due to the burning process. Unburned (ecological) bricks turned out to be an alternative to reduce energy consumption. Its composition, its use and other advantages make this product meet the three criteria of the tripod of sustainability: economic, social and environmental. The main objective of this work was to develop and characterize soil-cement reference samples and soil-cement samples with cement substitutions at 25%, 50%, and 100% by blast furnace slag. Through the three point bending test, it was possible to identify the results with greater resistance. For the age of 28 days, the highest values were: 10.80MPa; 8.9MPa; 7.0MPa; 4.4MPa, in increasing order of the blast furnace slag addition values. Through the tests it was noted that for water absorption, although the increase of its values was identified as the cement substitution increased, all materials were approved in comparison with the requirements of standard NBR 8491. This standard requires a maximum of 20% water absorption, the highest value found being equivalent to 14.82% for the sample with 25% substitution and 7 days of age. These values indicate the possibility of replacement of the cement by blast furnace slag, with the most adequate replacement being 50%. Already the total replacement is not adequate because its behavior in water is not what is expected for ecological bricks