Flood Mud as Geopolymer Precursor Materials: Effect of Flood Mud/Alkaline Activator and Na₂SiO₃/NaOH Ratios on Compressive Strength

Abstract:

This paper investigates the potential and suitability of flood mud to be used in geopolymer technique as construction materials. Flood mud was collected from Kelantan, Malaysia and crushed and sieved into powder form. Then, it was mixed with alkaline activator solution (mixture of NaOH and Na₂SiO₃ solutions) followed by curing process to produce flood mud geopolymers. In addition, the effect of varying solids/liquid (S/L) and Na₂SiO₃/NaOH ratios on the compressive strength of flood mud geopolymers were also investigated. The result showed that flood mud can be potentially used as precursor materials for geopolymer formation with favorable strength. Optimum compressive strength (24.6 MPa) of geopolymers based on flood mud was obtained at S/L = 1.25 and Na₂SiO₃/NaOH = 1.0.

• Periodical: Applied Mechanics and Materials (Volume 815)
• Pages: 170-176
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.815.170
• Online since: November 2015
• Authors: Mohd Mustafa Al Bakri Abdullah, Yun Ming Liew, Muhammad Faheem Mohd Tahir, Che Mohd Ruzaidi Ghazali, Kamarudin Hussin, Alida Abdullah
• Keywords: Alkaline Activator, Concrete, Flood Mud, Geopolymer

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