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http://dx.doi.org/10.5345/JKIC.2004.4.4.079

A Study on Hydration Properties of Recycled Cement Mortar using Admixture Materials  

Park, Cha-Won (동아대학교 대학원 건축공학과)
Kang, Byeung-Hee (동아대학교 건축학부)
Publication Information
Journal of the Korea Institute of Building Construction / v.4, no.4, 2004 , pp. 79-86 More about this Journal
Abstract
The purpose of this study was the development of a recycling process to recover the hydraulic properties of hydration products which account for a large proportion of cementitious powder from concrete waste. This process was performed to recycle cementitious powder as recycle cement. Therefore, after the theoretical consideration of the properties of recycle process of recycled aggregates and cementitious powder, we investigated the hydraulic properties of cementitious powder under various temperature conditions in hardened mortar which was modeled on concrete waste. And we analyzed properties of chemical reactions of recycled cement with admixture materials such as Fly-Ash, Blast Furnace Slag As a result of the experiment, the most effective method to recover hydraulic properties of the cementitious powder from concrete waste was condition of burning at 700℃ for 120 minute. And it is shown that the fluidity of mortar was decreased rapidly when the burning temperature of recycle cement was increased. However, the compressive strength and fluidity were improved significantly when admixture materials such as Fly-Ash or Blast Furnace Slag was added.
Keywords
Cementitious Powder from Concrete Waste; Recycled Cement; Admixture materials; Hydration Properties;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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