Abstract
Although the use of waste foundry sand (WFS) in concretes is already widespread, there is a gap regarding to waste foundry exhaust sand (WFES) and durability. In this research, the marble/granite processing waste (MGPW) was used as mineral addition, to improve the concrete viscosity, and WFES was used as a partial substitute (10%, 20%, 30%, 40%) for natural sand in self-compacting concrete (SCC). Compressive strength was evaluated at 7, 28 and 90 days. Also, as durability indicators, capillarity, sulfate and acid resistance tests were performed. The results indicated that the SCC with WFES presented less permeability to harmful agents and, consequently, greater durability when compared to the control mixture. Some results showed that the changes were not significant, therefore, the authors recommend the use of WFES in SCC up to 40%.
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