Synthesis and Characterization of Sodium Gluconate and Its Effects on the Properties of Portland Cement
Mahdee Muhammad Nafee, Umme Sarmeen Akhtar, Md. Sagirul Islam, Md. Ershad Halim, Mohammad Golam Mostafa, Imdadul Haque
International Research Journal of Pure and Applied Chemistry · pp. 20–32 · Published 9 Aug 2023
10.9734/irjpac/2023/v24i4817Abstract
The research explores the synthesis and characterization of sodium gluconate as a retarding admixture for Ordinary Portland Cement (OPC) and its impact on cement properties. The study found that sodium gluconate prolonged OPC's setting time, enhancing workability. Sodium gluconate was synthesized through a simple chemical process involving the reaction of gluconic acid with sodium hydroxide. The synthesized product was characterized using Fourier Transform Infrared (FT-IR) and 1H-NMR spectroscopy. The results showed that the synthesized sodium gluconate had a characteristic absorption peak at 3205 cm-1.The variations were investigated for setting time, compressive strength, and porosity. However, higher dosages led to prolong the setting time, increased the workability, reduced compressive strength and improved porosity. The study emphasizes the importance of balancing sodium gluconate dosage with other locally available admixtures for desired retardation effects without compromising strength. Further research is needed to optimize dosage and explore long-term effects on cement properties.
References (9)
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