Per: NIANDER aguiar cerqueira (UENF - ALBERTO LAMEG), Mayara Silva de Almeida (UENF), Sergio Luis Gonzalez Garcia (UENF), Rances Castillo Lara (UENF)
Abstract:
Self-compacting concrete (SCC) plays a crucial role in the construction industry, as it increases productivity, improves the working environment and contributes to sustainable concrete technology. This type of concrete is considered sustainable because it can be produced using large quantities of industrial waste. SCC has specific characteristics, and its performance is related to its properties in the fresh state, such as fluidity, viscosity and resistance to segregation. To achieve these properties, its composition includes mineral additions and fine materials, which can often be industrial waste, making the concrete more sustainable. This industrial waste can be used to replace both cement and sand. Replacing cement helps to reduce CO2 emissions into the atmosphere, while replacing sand reduces the use of natural resources. In this research, the industrial waste used is granite, which, if disposed of inappropriately, can cause siltation of rivers, pollution of water sources and, due to its fine granulometry, respiratory diseases in the population. Granite waste partially replaces natural sand in proportions of 20%, 30% and 40%. The rheological parameters were evaluated by testing the self-compacting microconcrete in its fresh state.