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Exploring Material Properties and Performance of Geopolymer Concrete: A Comprehensive Study

Sheikh Samir Sheikh Hamid, Harsh Rathore

Abstract


This research explores the influence of Ground Granulated Blast Furnace Slag (GGBS) and Recycled Coarse Aggregate (RCA) on Geopolymer Concrete (GPC) characteristics. Focusing on compressive strength evolution from 7 to 28 days, the study identifies an optimal alkaline ratio of 2.5, recommending a 10M sodium hydroxide solution. This study investigates the compressive and split tensile strength characteristics of Geopolymer Concrete (GPC) formulations with varying sodium hydroxide molarities and alkaline ratios. The compressive strength data at 7 and 28 days, revealing a consistent strength increase from the 7th to the 28th day. Notably, an alkaline ratio of 2.5 and a molarity of 10M exhibit optimal compressive strength. Furthermore split tensile strength results at the 28-day mark, indicating a peak at an alkaline ratio of 2.5 and a molarity of 10M. This aligns with the compressive strength trends, suggesting that these conditions are favorable for GPC mixes incorporating fly ash and sodium-based alkaline solutions.


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References


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