Influência de águas de reuso na hidratação, trabalhabilidade e comportamento mecânico de matrizes cimentícias

• Ano de defesa: 2019
• Autor(a) principal: D’Hyppolito Filho, Julio Cezar
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio de Janeiro; Brasil; Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia; Programa de Pós-Graduação em Engenharia Civil; UFRJ
• Palavras-chave em Português: Água de reuso no concreto; Sustentabilidade na construção civil; Cinética de hidratação; Engenharia Civil
• Link de acesso: http://hdl.handle.net/11422/23156

The current scenario of water crisis and the fact that water is an essential input in concrete suggests the need to study sustainable alternatives to replace drinking water in concrete in order to reduce its water footprint. In this context, wastewater reuse is presented as a good alternative, since sewage treatment plants return effluents with a high degree of purification. This study presents the advanced effects of using two different types of reused wastewater from sewage treatment, with different treatment levels, as mixing water and curing water in concrete. The research focused on the effects associated with hydration kinetics, workability and mechanical behavior in concrete, as well as the characterization of reuse wastewaters. In the results, it can be observed that the reuse wastewaters presented a behavior very similar to the drinking water, indicating the viability of substitution in the activities related to the concrete production, as well as its cure.