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http://dx.doi.org/10.5345/JKIBC.2015.15.3.257

Effect of the Replacement Ratio and Sources of Blast Furnace Slag Powder on the Fundamental Properties of Recycled Fine Aggregates Based Mortar  

Han, Cheon-Goo (Department of Architectural Engineering, Cheong ju University)
Zhao, Yang (Department of Architectural Engineering, Cheong ju University)
Publication Information
Journal of the Korea Institute of Building Construction / v.15, no.3, 2015 , pp. 257-263 More about this Journal
Abstract
In this study, the quality of blast furnace slag and the engineering properties of recycled aggregate based mortar with variable replacement of blast furnace slag have been focused. Blast furnace slag(BS) manufactured in various areas in Korea were prepared for this study. For the investigation results, 4 types(among the all of 9 types) of the experimental results were identified as below the standard level when using blast furnace slag chosen from different factories. Especially the particle size of the blast furnace slag was considered as the largest problem. When using BS in the recycled aggregates based mortar, the increase amount of blast furnace slag, increased the fluidity but delayed the setting time and decreased strength at early age. Based on the relationship of the amount of BS and the engineering properties of mortar, this study found that the amount of $SO_3$ and L.O.I affect the setting time, 3 days strength and 91 days strength to the certain standard level.
Keywords
blast furnace slag powder; recycled fine aggregates; cement mortar;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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