Incorporation of Agricultural and Industrial By-products in Self-compacting Concrete: A Review

Abstract

Self-compacting concrete is an innovative high-performance concrete that flows and compacts under its own weight without segregation or bleeding. Eliminating the need for tamping and vibratory compaction improves productivity and performance of concrete structures. This article presents several aspects of self-compacting concrete technology, including the history, concrete processing characteristics, and mix design, as well as discussing the incorporation of by-productssuch as fly ash, rice husk ash, bagasse ash, and limestone powder during concrete production. Due to the rapid expansion of industrial and agricultural operations, disposal of by-products such as these has been the subject of increasing environmental concern, and their use in self-compacting concrete production is a novel example of material recycling and sustainability.The by-products act as filler materials and can participate in pozzolanic reaction associated with cement hydration, often resulting in improved concrete performance.