Self-Compacting Concrete Using Supplementary Cementitious Materials and Fibers: Review

This research paper undertook a methodical examination of existing literature concerning self compacting concrete (SCC) properties using supplementary cementitious materials (SCMs) other than habitual materials according to the latest survey. From a sustainability perspective, habitual SCMs have taken the place of cement. However, because habitual SCM are heavily exploited and in short supply, current researchers are focusing more on the latest industrial waste, construction and demolition waste, and natural by-products. The present period places greater emphasis on fiber-reinforced SCC but knowledge of the use of different types of fibers and their application in SCC according to their volume fraction, aspect ratio, and distribution is presented for enhancing the microstructure, fresh, mechanical, and durability properties. Works of literature focus on the impact of fibers of metallic, non-metallic, synthetic, and natural fibers in mono and hybrid combinations. The results reported by several authors were illustrated in tables and figures to gain knowledge on the limitations of using contemporary SCMs on fresh, mechanical, durability, and microstructure properties of SCC. From the literature outcomes, the suitable contemporary SCMs as an optimal powder content by the replacement of cement for a maximum extent in SCC as binary and ternary blended forms were reviewed to reduce the carbon dioxide emissions in the atmosphere during the SCC production process that maintains sustainability. Further, the addition of synthetic fibers and metallic/non-metallic fibers were exploited to a maximum extent for enhancing the tensile and flexural behaviour of SCC which could be overcome by the adoption of natural fibers as mono/hybrid fiber additions along with metallic/non-metallic/synthetic fibers combinations as self-treatments to prevent the degradation of natural fibers when added in SCC would influence as cutting-edge materials to create a sustainable environment. Hence, the future scope is the incorporation of novel SCMs based on the tailor-made constituents of chemical composition with the addition of treated natural fibers in preparation for greener SCC.