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http://dx.doi.org/10.14190/JRCR.2016.4.2.157

Quality of High Volume Blast Furnace Slag Mortar Depending on Desulfurization Gypsum Treating Methods and Fine Aggregate Type  

Han, Cheon-Goo (Department of Architectural Engineering, Cheongju University)
Lee, Dong-Yun (Department of Architectural Engineering, Cheongju University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.4, no.2, 2016 , pp. 157-164 More about this Journal
Abstract
In this research, based on the condition of using desulfurization gypsum(FGD) as a stimulator for high-volume blast furnace slag cement mortar, sieving and heating process methods of removing activated carbon in FGD were compared with the non-processed FGD and recycled and natural fine aggregates were compared for suitable aggregate to be used. According to the result of experiment, sieving with 0.3mm was more efficient than $500^{\circ}C$ heating for processing the FGD, and recycled fine aggregate showed more favorable result than natural fine aggregate at the FGD content was 5 to 10%. On the other hand, the mortar mixture including recycled fine aggregate had a high drying shrinkage, and absorption ratio, and thus specific limitations on applying recycled fine aggregate should be required.
Keywords
Blast furnace slag powder; Desulfurized gypsum; Sieving; Heating; Recycled fine aggregate;
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Times Cited By KSCI : 5  (Citation Analysis)
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