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http://dx.doi.org/10.14190/JRCR.2020.8.4.395

Characteristics of Concrete Using Ready-Mixed Concrete Recycled Water Mixed with Industrial By-Product Desulfurization Gypsum  

Kim, Young-Yeop (Hanyang University ERICA)
Lee, Han-Seung (Hanyang University ERICA)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.8, no.4, 2020 , pp. 395-403 More about this Journal
Abstract
CaO-based by-product, which consist of CaO, SO3, Al2O3 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 redy-mixde concrete. As a result of concrete tests, it was confirmed that there is no problem of strength or drying shrinkage while ensuring workability. Therefore, the possibility of specific application using activated sludge was confirmed.
Keywords
Activated-sludge; CaO-based by-product; Desulfurization gypsum; Recycling water; Ready-mixed concrete;
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