A Comprehensive Review of Silica Rich Ceramic Waste as a Fine Aggregate in Concrete
摘要
In recent decades, the demand for ceramic materials has increased significantly across multiple sectors, including construction, consumer items, industrial processes, and innovative technology. Consequently, this expansion has resulted in a substantial rise in the worldwide volume of ceramic waste. The current state of ceramic waste recycling is considered unsustainable, resulting in its disposal in landfills. Numerous studies have employed Ceramic waste as fine aggregate in concrete, and there is considerable interest in the ongoing utilization of ceramic waste in the construction sector as a concrete constituent. The main objective of this comprehensive review is to enhance the utilization of CW as fine aggregate from various sources in both mortar and concrete, and to deepen the understanding of its impact on the physicochemical, fresh, hardened, and durability properties of concrete. This review article demonstrates that the inclusion of ceramic waste enhances the reactivity of concrete, attributable to the elevated silica content in ceramic waste, and advises utilizing an optimal substitution of 10 to 40% of ceramic waste for natural fine aggregates. A notable improvement in compressive strength, especially at 100% replacement, indicating a 15.5% increase compared to control concrete. Particle size distribution and chemical composition significantly influence the performance of concrete. The synergistic effect of supplementary cementitious blends with ceramic waste aggregate has also influenced the mechanical and durability properties, thereby enhancing the overall performance of mortar and concrete. This comprehensive review concludes with the environmental and economic factors, providing insightful guidance for individuals committed to a sustainable future in the construction sector.
Graphical Abstract