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http://dx.doi.org/10.4334/JKCI.2017.29.4.399

Characteristics of Cement Matrix/Mortar with CaO-based Activated-sludge  

Lee, Yong-Soo (Korea Concrete Testing Laboratory)
Ryu, Seong-Lyong (Korea Concrete Testing Laboratory)
Shin, Kwang-Ho (Korea Concrete Testing Laboratory)
Chu, Yong-Sik (Energy & Environment Division, Korea Institute of Ceramic Engineering & Technology)
Kim, Young-Yup (Hanyang University ERICA Campus)
Publication Information
Journal of the Korea Concrete Institute / v.29, no.4, 2017 , pp. 399-406 More about this Journal
Abstract
CaO-based by-product, which consist of CaO, $SO_3$, $Al_2O_3$ and so on, has being used to raw materials of CaO compound. When It was applied to recycling water of remicon, concrete performance can be enhanced because hydration reaction of powder material is accelerated. In this study, activated-sludge, which was putted desulfurization gypsum of CaO-based in recycling water, was manufactured to verify effect of them, and then they was investigated by characteristics of cement matrix and mortar. As a results, they indicated reduction of setting time and high soundness in cement matrix, and acceleration of hydration reaction can be verified by XRD analysis. Also, it can be maintained good workability if water content by usage of desulfurization gypsum, which used for production of activated-sludge, was adjusted. In addition, it can be verified strength development by activated-sludge although cement content by usage of desulfurization gypsum was reduced.
Keywords
activated-sludge; CaO-based by-product; desulfurization gypsum; recycling water; cement matrix;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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