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http://dx.doi.org/10.14190/JRCR.2019.7.4.310

Physical and Chemical Properties of Chlorine Bypass System-Dust from Cement Manufacturing  

Han, Min-Cheol (Department of Architectural Engineering, Cheong-ju University)
Lee, Dong-Joo (Department of Architectural Engineering, Cheong-ju University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.7, no.4, 2019 , pp. 310-315 More about this Journal
Abstract
This study conducted a series of studies to find alternative ways to use Chlorine Bypass System-dust(CBS-dust) in cement production. The results of engineering characteristics of CBS-dust are summarized as follows. First of all, the density of CBS-dust is 2.40, lighter than cement and the pH was 12.50 which was strong alkaline. In terms of particle size, it was 11.70 ㎛ which was finer than cement. With chemical properties, calcium oxide(CaO) was the highest as 35.10%, potassium oxide(K2O) was 32.43%, potassium chloride(KCl) was 19.46%, sulfur oxide(SO3) was 6.81%, and the remaining chemical components are SiO2, Fe2O3, Al2O3, MgO, and the like. Therefore, if CBS-dust is used as early-strength chemical admixtures in the concrete secondary products that use a large amount of mineral admixtures without rebar, it can be an effective method for increasing the strength of concrete as an alkali activator and preventing early-frost damage of Cold Weather Concrete.
Keywords
Chlorine bypass system dust(CBS dust); Physical properties; Chemical properties; Potassium chloride content;
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  • Reference
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