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J. Korean Ceram. Soc. > Volume 47(5); 2010 > Article
Journal of the Korean Ceramic Society 2010;47(5): 365.
doi: https://doi.org/10.4191/kcers.2010.47.5.365
반응표면분석법에 따른 저온소성 경량골재의 킬른공정변수 최적화
이한백, 서치호1
선일공업(주) 기술연구소
1건국대학교 건축공학과
Optimization of Kiln Process Parameters of Low-Temperature Sintering Lightweight Aggregate by Response Surface Analysis
Han-Baek Lee, Chee-Ho Seo1
R&D Center, Sunil Industrial Company
1Department of Architectural Engineering, Konkuk University
ABSTRACT
This paper was to evaluate the influence of kiln process parameter(kiln angle, kiln rotating speed) of lightweight aggregate using waste glass and bottom ash with industrial by-products on thermal conductivity, density, water absorption, fracture load and porosity by response surface analysis. In the results of surface plot and contour plot, it has verified that kiln residence time of lightweight aggregate increase as kiln angle and rotating speed decreases. For this reason, pore size and quantity tend to increase by active reaction of forming agent. It seems to be that increase in pore size and quantity have caused decreasing density, fracture load and thermal conductivity, and increasing water absorption. In conclusion, optimization of kiln process parameter on thermal conductivity, density, water absorption, fracture load and porosity by response surface analysis are kiln angle 2.4646%, kiln rotating speed 40.7089 rpm.
Key words: Lightweight aggregate, Waste glass, Bottom ash, Fracture load, Rotary kiln
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