Synthesis of Geopolymer Paste as Coating Material Based on Kaolinite and Rice Husk Ash

Abstract:

The purpose of this research is to study the properties of geopolymer paste based on metakaolin and rice husk ash (RHA) as coating material. Geopolymer paste was produced through alkaline activation method added with rice husk ash as much as 15% relative to the mass of metakaolin. The coating was achieved by painting the substrates with geopolymer paste. The coated material were cured at 60 °C for 3 hours. Samples were left at room temperature until seven days before any testing was conducted. The chemical resistance of the sample was studied by immersing the samples into (H₂SO₄) 1% for three days and it was found that the coated material was still in good condition. The presence of RHA was found to improve the thermal properties of geopolymer paste. The results showed that geoplymer paste was an excellent coating material for chemical and fire protection.

• Periodical: Materials Science Forum (Volume 841)
• Pages: 79-82
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.841.79
• Online since: January 2016
• Authors: Ruth Meisye Kaloari*, Syamsidar Syamsidar, Sulfiana Sulfiana, Abdul Haris, Subaer Subaer
• Keywords: Corrosion, Kaolinite, Microstructure, Rice Husk Ash, Thermal Resistance

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