ABSTRACT
Pozzolanic is one of the properties that cement needs to have an increased durability, which can not be only found in many chemical elements but also in crops, such as corn husk. This study investigates the pozzolanic properties of corn husk ash (CHA) and its effects on cement durability. The research explores the effectiveness of the varying amounts of CHA as an additive to enhance the crack resistance and strength of cement. Using an experimental research design, each set with different CHA and cement percentages (50/50%, 25/75%, and 75/25%) was tested against a control group with 100% cement through hammering and load capacity tests. The results indicate that set C with 25% CHA content and 75% cement improves crack resistance and maintains an acceptable strength, while the sets with higher CHA amounts weaken the cement structure. The statistical analysis using one-way ANOVA implies a significant difference in crack resistance and strength among the tested mixtures. Findings suggest that the incorporation of a controlled amount of CHA can contribute to sustainable construction practices by reducing environmental impact and promoting the management of agricultural wastes. However, too much CHA content negatively affects the durability of cement, emphasizing the need for proper and right proportioning. This study highlights the potential of CHA as an additive to cement mixtures for increased durability.