Strength Characteristics of Ternary Blended Concrete with Fly Ash and Wollastonite Mixed in Part to Replace Cement

International Journal of Civil Engineering

© 2023 by SSRG - IJCE Journal

Volume 10 Issue 12

Year of Publication : 2023

Authors : R. Haripraba, R. Ganesan, M. Manoharan, Basineni Uday Kumar

10.14445/23488352/IJCE-V10I12P104

How to Cite?

R. Haripraba, R. Ganesan, M. Manoharan, Basineni Uday Kumar, "Strength Characteristics of Ternary Blended Concrete with Fly Ash and Wollastonite Mixed in Part to Replace Cement," SSRG International Journal of Civil Engineering, vol. 10,  no. 12, pp. 33-39, 2023. Crossref, https://doi.org/10.14445/23488352/IJCE-V10I12P104

Abstract:

Because of the rising demand for concrete around the world, more and more mineral admixtures are being used as whole or partial replacements for cement. These substances can improve the durability of concrete while also drastically lowering the quantity of cement required. This work examines the strength characteristics of ternary blended concrete, with a particular emphasis on the up to 40% substitution of fly ash and Wollastonite. Together with Portland cement, fly ash-an industrial byproduct-and Wollastonite-a naturally occurring mineral with pozzolanic properties-were added as additional cementitious ingredients. The purpose of the study was to evaluate how these replacements might affect the concrete’s flexural, split tensile and compressive strengths. In laboratory trials, the percentage of Wollastonite and Fly ash in concrete mixtures was systematically varied up to a maximum replacement level of 40%. The results indicated that the ternary blends had better strength characteristics than standard concrete mixtures. The concrete’s ability to enhance its mechanical characteristics by the combination of fly ash and Wollastonite can be determined by its increased flexural, split-tensile, and compressive strengths. Significantly, the study discovered that adding up to 20% more fly ash and Wollastonite to the concrete was an efficient way to achieve the required strength increases without sacrificing the concrete’s workability. By using natural minerals and industrial leftovers to lessen the environmental impact of typical concrete manufacturing, this environmentally conscious technique is in line with sustainable construction practices.

Keywords:

Fly ash, Wollastonite, Workability, Compressive strength, Ternary blended concrete, Pozzolanic.

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