Influence of Alkaline Solution Ratio, Superplasticizer, and Curing Method on Geopolymer Paste Compressive Strength under Sulfuric Acid Exposure
Influence of Alkaline Solution Ratio, Superplasticizer, and Curing Method on Geopolymer Paste Compressive Strength under Sulfuric Acid Exposure |
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| © 2024 by IJETT Journal | ||
| Volume-72 Issue-9 |
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| Year of Publication : 2024 | ||
| Author : Ratni Nurwidayati, Akhmad Rizalli Saidy, Henry Wardhana, Nursiah Chairunnisa, Putri Retno Ayu Kinanti, Noor Sasmita |
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| DOI : 10.14445/22315381/IJETT-V72I9P141 | ||
How to Cite?
Ratni Nurwidayati, Akhmad Rizalli Saidy, Henry Wardhana, Nursiah Chairunnisa, Putri Retno Ayu Kinanti, Noor Sasmita, "Influence of Alkaline Solution Ratio, Superplasticizer, and Curing Method on Geopolymer Paste Compressive Strength under Sulfuric Acid Exposure," International Journal of Engineering Trends and Technology, vol. 72, no. 9, pp. 436-445, 2024. Crossref, https://doi.org/10.14445/22315381/IJETT-V72I9P141
Abstract
This paper presents an experimental investigation focusing on the short-term durability of geopolymer paste derived from fly ash. The study involves the activation of Class F fly ash using sodium silicate and sodium hydroxide at varying ratios alongside different proportions of superplasticizer. The assessment encompasses an analysis of compressive strength, visual alterations, and mass fluctuations, considering the influence of two distinct curing methods. The results indicate that an increase in the ratio of sodium silicate to sodium hydroxide and the percentage of superplasticizer leads to a concurrent rise in compressive strength. Notably, a sodium silicate to sodium hydroxide ratio of 2.5 exhibits more excellent sulfuric acid resistance than lower ratios. Additionally, it is observed that test specimens subjected to moist curing with a higher alkaline solution ratio demonstrate increased resilience in sulfuric acid environments.
Keywords
Durability, Fly ash, Geopolymer paste, Sulfuric acid, Superplasticizer.
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