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Effect of limestone addition on mechanical properties of ceramic tiles with fly ash

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2018, 28(6), pp.256-262
  • DOI : 10.6111/JKCGCT.2018.28.6.256
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : October 1, 2018
  • Accepted : November 27, 2018
  • Published : December 31, 2018

Jin-Wook Lee 1 Kyu-Sung Han 2 Kwangtaek Hwang 3 Kim Jinho 3

1한국세라믹기술원 엔지니어링세라믹센터
2한국세라믹기술원 이천분원
3한국세라믹기술원

Accredited

ABSTRACT

A great amount of fly ash, which is a waste from a thermal power plant, has not been appropriately recycled until now. Landfill of flay ash causes environmental pollution and enormous economic costs. In this study, manufacturing of architectural ceramic tile was investigated replacing fly ash with clay raw material. The properties of porcelain tile was analyzed after manufacturing porcelain tile with mineral based glaze and fast firing process. In particular, the effect of the fly ash addition on the properties of ceramic tile was investigated by increasing the amount of limestone addition. Porcelain tile with fly ash showed excellent bending strength, water absorption, warping and abrasion resistance. However, a significant decrease in durability was observed through the autoclave test. Addition of limestone increased the water absorption, twisting and hydration expansion of the ceramic tile, but it was confirmed that the durability of the ceramic tile with fly ash was greatly improved. In conclusion, recycled architectural ceramic tiles, which can meet domestic construction standards, could be manufactured with the addition of fly ash and limestone.

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