PRODUÇÃO DE ARGAMASSAS COM SUBSTITUIÇÃO PARCIAL DE CIMENTO E AGREGADO POR CINZAS DE CARVÃO VAPOR

Abstract

This research evaluates the influence of the simultaneous replacement of light fly ash and heavy fly ash, obtained from the combustion of steam coal, in mortar, being the light fly ash replacing the cement and the heavy fly ash replacing the fine aggregate. The light fly ash was dosed for cement replacement levels, by volume, of 10 and 30%. The heavy fly ash replaced the fine aggregate in 5 and 7%. Tests of consistency index, resistance to flexural traction, compression, porosity, and water absorption by capillarity were performed. An increase in mortar strength was observed when only light fly ash was incorporated.