Smart-Sized Silica and Brick Kiln Dust for Stronger More Sustainable White Cement

This research analyzes the performance of White Portland Cement (WPC) when partially substituted with 40% Smart-sized silica(SSS) and 5% Brick Kiln Dust (BKD). Scanning electron microscopy (SEM) was used in experiments to investigate microstructural changes, compressive strength, hydration behavior, and setting times. The characteristics of WPC are greatly enhanced by the inclusion of BKD and SSS. A small adjustment to the setting time ensures high workability without sacrificing performance. After 28 days of curing, the blended cement acquires a much higher strength than standard WPC, according to the compressive strength tests. The main cause of this improvement is the capacity of SSS to promote the development of dense calcium-silicate-hydrate (C-S-H) gel, which improves the cement matrix. BKD enhances strength and durability by participating in the pozzolanic reaction. Furthermore, using SSS and BKD in place of certain WPC lowers production costs and the environmental impact. According to this study, WPC is a great substitute for conventional formulations since it produces a stronger, more sustainable cement when 40% SSS and 5% BKD are added.