Behaviour of sustainable high strength self-compactinsg concrete with electrically precipitated fly Ash(EPFA) – A thermal waste. (2022)

• Record Type: Journal Article
• Authors: Sambangi, Arunchaitanya; Eluru, Arunakanthi
• Is Part Of: Materials today. Volume 65:Part 2(2022)
• Page Start: 860
• Page End: 870
• Publication Date: 2022
• Subjects: Self-compacting concrete -- Compressive strength -- Sorptivity -- RCPT -- SEM -- XRD; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.03.452
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Concrete is the most common heterogeneous material in the construction industry. Admixtures have gained wide use in modern constructions with congested reinforcement with ambitious casting conditions. For such applications, self-compacting concrete (SCC) is the only special concrete with high cohesiveness and fluidity. This paper shows the study on the fresh properties, compressive, flexural, and split tensile strength, and RCPT, sorptivity of SCC with partially replaced electrically precipitated fly ash (EPFA) from 0 to 30% at 5% interval in cement and polycarboxylate ether-based superplasticizer as a chemical admixture. Compared the results with conventional SCC mix the fresh concrete performance was studied through the measurement of passing ability, filling ability and flowing ability by using L-Box, U-Box, V-Funnel and slump flow. The microstructure of the concrete was analysed with the help of a Scanning Electron Microscope(SEM) and X-Ray Diffraction(XRD). The results showed that 20% EPFA as partial replacement to SCC gives better results than the conventional concrete, thereby leading to economic profits as well as ecological benefits.