Strength and Reliability Performance of Wollastonite in Concrete as Part Replace of Cement with Metakaolin as Admixture

International Journal of Civil Engineering
© 2024 by SSRG - IJCE Journal
Volume 11 Issue 6
Year of Publication : 2024
Authors : R. Haripraba, R. Ganesan
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R. Haripraba, R. Ganesan, "Strength and Reliability Performance of Wollastonite in Concrete as Part Replace of Cement with Metakaolin as Admixture," SSRG International Journal of Civil Engineering, vol. 11,  no. 6, pp. 10-17, 2024. Crossref, https://doi.org/10.14445/23488352/IJCE-V11I6P102

Abstract:

This study examines the long-term reliability of concrete that has metakaolin added as an admixture and wollastonite used in part instead of cement in the concrete grade of M30. In recent times, wollastonite—a naturally found element with pozzolanic qualities—has drawn interest because of its potential to improve the qualities of concrete and lessen its negative effects on the environment. Metakaolin, a supplementary cementitious material, is known for its ability to improve concrete strength and durability, used to increase the adhesiveness act as admixture. In this research, various concrete ratios were made on different proportions of wollastonite to assess their impact on the reliability of concrete. The research effort involves assessing the mechanical strength and long-term reliability of concrete mixes containing various proportions of wollastonite and metakaolin as an admixture of 3%. Tests are conducted following standard procedures to evaluate the mechanical strength and resistance to adverse environmental conditions, including chloride ion penetration and sulfate attack. Using Scanning Electron Microscopy (SEM) examination, the effects of wollastonite and metakaolin on the microstructure of concrete are also investigated. The research outcomes are compared with normal concrete to analyze the effectiveness of wollastonite and metakaolin in enhancing concrete durability. The research’s conclusion delivers beneficial insights into the feasibility and effectiveness of utilizing wollastonite and metakaolin as sustainable alternatives in concrete production, contributing to the development of durable and eco-friendly construction materials.

Keywords:

Wollastonite, Metakaolin, Admixture, Concrete tests, Compressive test, Split tensile, SEM & XRD analysis.

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