Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Colors and Crystals of ALC Surface with Green Body's Staying Time

성형체의 대기시간에 따른 ALC 표면 색상과 결정특성

  • Chu, Yong Sik (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Seo, Sung Kwan (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Park, Soo Hyun (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Song, Hun (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Lee, Jong Kyu (Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology)
  • 추용식 (한국세라믹기술원 에너지환경소재본부) ;
  • 서성관 (한국세라믹기술원 에너지환경소재본부) ;
  • 박수현 (한국세라믹기술원 에너지환경소재본부) ;
  • 송훈 (한국세라믹기술원 에너지환경소재본부) ;
  • 이종규 (한국세라믹기술원 에너지환경소재본부)
  • Received : 2012.10.09
  • Accepted : 2012.11.19
  • Published : 2012.11.30
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Abstract

ALC was fabricated using cement, lime, quartzite and a foaming agent via a hydrothermal reaction. ALC has various hydrothermal reaction products and many pores. The properties and colors of ALC surfaces were changed by various factors during ALC fabrication process. This study tested various staying times to analyze these phenomena. It was found that the staying time of green body influenced the properties of hydrothermal products and color of ALC surface. The longer staying time of green body, the lower tobermorite content and cumulative loss weight. An increase in holding time changed color and decreased whiteness of ALC surface. The relationship between whiteness and cumulative loss weight was very high (Coefficient, r = 0.95). It was surmised that tobermorite content was an important factor for enhancement of whiteness However, ettringite and quartzite did not contribute to whiteness.

Keywords

References

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