Reciclaje de escoria granulada de fundición (EGF) como sustitución de parte del cemento en hormigón

• Autor(a) principal: Ceccatto, Diana Maria
• Data de Publicação: 2009
• Outros Autores: Masuero, Angela Borges, Moraes, Carlos Alberto Mendes, Vilela, Antonio Cezar Faria
• Tipo de documento: Artigo
• Idioma: spa
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/20762
• topic: Escória de fundição; Resíduos industriais; Reciclagem; Construção civil; Recycling; Slag; Foundry; Concrete

The recycling of industrial solid wastes has become an indispensable practice to the natural resource preservation, in the cost and environmental impact reduction. The utilization of alternative materials in the civil construction industry is attractive and correct way in terms of economy and environment. As result of that, the slag recycling as raw material in pavement, concrete and cement are already common practices, where the noblest use of this material depends on the existence of adequate characteristics to the proposed use. The foundry granulated slag is a waste generated in the process of cast iron production via cupola furnace. Previous studies have shown that this slag, with lower particle size, presents good pozzolanic properties. Also, its amorphous structure resulting from fast cooling linked to an adequate chemical composition may permit a noblest application of this solid waste, such as cement substitute. water/agglomerate (0,40; 0,55 0,70) rates. Such combinations were compared with the reference concrete (without slag). For each concrete age (7, 28 and 91 days) mechanical tests were carried out as uniaxial compressive strength, splitting tensile strength and flexural strength. The results have shown that the granulated slag present an adequate performance (mechanical properties) to the proposed application.