ANÁLISE DA SUBSTITUIÇÃO DO AGREGADO MIÚDO QUARTZOSO POR AGREGADO MIÚDO DE BRITAGEM DE ROCHA BASÁLTICA EM CONCRETO

Abstract

The effects of replacing the fine natural aggregate (FNA) by the fine crushed aggregate (FCA) were analyzed. A reference mix and 25% and 50% substitutions of FNA by FCA were defined, maintaining a fixed water/cement ratio. In the results, the 50/50 mix obtained an increase of in 1.56% and 34.66% in the resistance to axial compression and traction by diametral compression, respectively, at 28 days, in relation to reference mix. Thus, the 50/50 sample proved to be more promising compared to the others regarding compression analyses.