The Journal of Science and Engineering Applications (JSEA)

Abstract

This current work investigates the application of (CD) as an alternative to cement while making concrete at percentage 15%, 20%, and 25%, and the effect of combination of cement kiln dust (CKD) with calcite dust (CD) at percentage of 15% and various amounts of CKD 5%, 10%, and 15%. The findings indicate that excessive use of (CD), particularly at the 15% CD replacement, results in compressive strength reduced to a certain degree. Incorporation of (CKD) with (CD) improves later-age development of the concrete's strength. Furthermore with 25% CD, there is a reduction in absorption rate, indicating improved impermeability and durability. The inclusion of (CD) also enhances the corrosion Resilience of the concrete and makes it suitable for exposure in aggressive conditions. Conversely, it was discovered that at certain replacement level of CKD increases the vulnerability of the concrete to corrosion and at 15% CKD replacement the probability of corrosion become less underscores the need for careful optimization. Importantly, the incorporation of (CD) does not have a detrimental effect on the resilience of the concrete to the ingress of chloride ions. Additionally, the mixture of 15% CKD and 15% CD that offers a combined 30% cement replacement improves the resilience of the concrete against chloride ions. In this study, the capabilities of CD and CKD in the manufacture of concrete are highlighted, offering important insights on their individual and combined effects on mechanical characteristics and durability and hence promoting sustainability in the construction industry.