Impact of silica gel G on mechanical and microstructural properties of magnesium oxychloride

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Published: Apr 25, 2026
DOI: https://doi.org/10.2298/JSC251217021Y
Keywords:
cement, setting time, water resistance, compressive strength, silica gel G

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Meenakshi
Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan, India
https://orcid.org/0000-0002-1468-770X
Nisha Yadav
Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan,302004, India
https://orcid.org/0009-0005-6669-3553
Bhupendra Pal
Government Polytechnic College, Karauli, Rajasthan, 322241, India

Abstract

Magnesium oxychloride cement (MOC), a type of Sorel's cement, has gained renewed attention as a sustainable building material due to its low carbon footprint and energy consumption. However, its application in construction remains limited, primarily due to its inadequate moisture resistance and the reduced early-age strength under elevated temperature conditions. This research investigates the impact of silica gel G (SG) on the properties of MOC. SG was incorporated into MOC at varying proportions (0-20% by weight of MgO) to form MOC-SG composites. The study evaluated the physical and mechanical properties of these composites, including setting time, moisture ingress resistance, and compressive strength. Additionally, FTIR, PXRD, SEM-EDX and TGA analysis were also conducted to examine the crystalline phase of the composites. SG acts as a binding agent, enhancing the strength and durability of the composite. This research demonstrates the potential of MOC-SG composite as a promising sustainable building material. Results indicate that the addition of 5% SG significantly improves the properties of MOC.

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[1]
Meenakshi, N. Yadav, and B. Pal, “Impact of silica gel G on mechanical and microstructural properties of magnesium oxychloride”, J. Serb. Chem. Soc., Apr. 2026.
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