Enhancement Bending Strength of Non Fired Wall Tiles by Recovering Sand-Wastes By-Products from Kaolin Beneficiation Process

Abstract:

Kaolin beneficiation mining is one of the sectors in a supply chain of ceramic industries, supplying qualified raw materials for manufacturing high-quality ceramic products. However, substantially by-products are generated from the mining process. The abundance fraction of sand-wastes is generated by approximately 40% of kaolin material input, amounting to 172,200 tons/ year. The burden of the manufacturer is attempting to find out the way to solve this problem. The effort of this research is to utilize waste by-products (sand-wastes) from kaolin mining. The eco-friendly Non fired wall tiles are developed with the combination of sand-wastes, laterite soil, river sand, and Portland cement Type I. They have been compared with the Thai Industrial Standard (TIS 2508-2555). Results of the experiment show that the proposed wall tile can achieve the physical properties of TIS 2508-2555. Scanning Electron Microscope (SEM) has been studied to analyze the surface morphology of specimens. This can be summarized that 25% of sand-wastes can be utilized in wall tiles. In addition, energy-saving for non-firing products is achieved. Furthermore, energy-saving is also calculated and compared with fired wall tile which has similar properties.

• Periodical: Key Engineering Materials (Volume 877)
• Pages: 123-130
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.877.123
• Online since: February 2021
• Authors: Ubolrat Wangrakdiskul*, Thanapong Poommong, Pishayuth Tubtimkeaw
• Keywords: Eco-Friendly Products, Non-Fired Wall Tiles, Sand Wastes from Kaolin Beneficiation Process

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