Influence of Rice Husk Ash in Geopolymer Concrete– a Review

DOI

No DOI

Published In

Volume 2, Issue 5 (2022)

Published Online

September-October 2022

Pages

01-07

Article Type

Review Article

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The production of portland cement leads to the pollution of the environment by the release of large amount of CO2 to the atmosphere. This give rise to the extensive research work on materials with low carbon footprint as substitute to port land cement. Geopolymer concrete is presently studied extensively as a substitute to Portland cement. This paper briefly reviews the influence of rice husk ash in Geopolymer concrete, its strength and potential application. From the review, it was concluded that RHA improves the mechanical properties of Geopolymer concrete at optimum curing temperature of 75 ⁰C and completed within 7 days to obtain the maximum strength. GPC exhibits better mechanical properties when compared to Portland cement concrete and has a good resistance to sulphate attack which makes it useful in marine structures. The addition of RHA in Geopolymer concrete enhances durability, compressive and tensile strength of concrete. The increase in the percentage of RHA reduces the workability of Geopolymer concrete but can be improved upon by the addition of super-plasticizers. Keywords: Geopolymer concrete, Rice husk ash, Workability, Durability, Curing, Fly ash.