| Abstrakt: |
One of the most critical challenges for researchers worldwide is waste material management and reducing its amount to save the environment from its effects. Cement kiln dust (CKD), also known as bypass dust, is one of these waste materials produced as a by-product of the cement manufacturing process. It comprises fine-graded particles that look similar to the composition of Portland cement. It can be reused in various applications such as soil stabilization, cement replacement (%) in mortar and concrete, and waste solidification. This paper analyzes reviewed data on using cement dust clinker as an alternative to cement in mortar and demonstrates how it affects the mechanical and physical qualities (setting time, compressive strength, flexural strength, and shrinkage test). According to the data obtained from previous research, using CKD alone as a replacement for cement reduces compressive and flexural strength, while the value of the decrease in compressive strength was about 6% compared with the reference mixture, and the reduction in flexural strength was 10% at 28 days compared with the reference mixture. Using CKD with fly ash can improve the ability of CKD, while using it with slag will be more capable, especially at age 28 days or greater. Using CKD with GGBS and silica fume together as a replacement for cement will obtain good compressive strength, which will be higher than the usual mix without any replacement, an increase of less than 10%. The chemical composition of CKD will play an essential role in its behavior when used as a cement replacement. [ABSTRACT FROM AUTHOR] |
