Effect of sugarcane bagasse ash on the mechanical properties of pervious concrete

Abstract

Sugarcane bagasse ash (CBCA) is a byproduct of the sugar industry that is considered as a pozzolanic material due to its high content of silica and aluminum. The study evaluates the effect of CBCA on the mechanical properties of permeable concrete. Tests were conducted on the concrete's compressive strength using 2 %, 4 %, and 6 % percentages of CBCA. The results showed that adding 2 % CBCA achieved a compressive strength of 234,61 Kg/cm2, higher than the standard sample which achieved 218,37 Kg/cm2. Adding 4 % and 6 % CBCA resulted in compressive strengths of 214,88 Kg/cm2 and 206,91 Kg/cm2, respectively. It was determined that the higher the incorporation of CBCA, the lower the compressive strength of the concrete, likely due to the low percentage of Sodium (Na) in the chemical composition of CBCA, which starts to affect the mechanical properties of the permeable concrete from day 21 of curing. Finally, it is demonstrated that CBCA is a promising additive, but further studies are suggested to evaluate its long-term effects and economic viability in large-scale concrete production.