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http://dx.doi.org/10.7844/kirr.2015.24.5.63

Experimental Study on the Properties of Recycled Concrete using Recycled Coarse Aggregates and Steel Slag Fine Aggregates  

Lee, Jaesung (Hannam University, Department of Architectural Engineering)
Na, Okpin (Hyundai E&C)
Publication Information
Resources Recycling / v.24, no.5, 2015 , pp. 63-71 More about this Journal
Abstract
The purpose of this study is to investigate the optimum replacement rate and material properties of eco-friendly recycled concrete using recycled coarse aggregates and rapid-chilled steel slag fine aggregates. The replacement rate of recycled coarse aggregates was increased from 30% to 50% of total volume of coarse aggregates and the rapid-chilled steel slag aggregates were substituted for 10% to 50% of total volume of fine aggregates. As a result, the increment of recycled coarse aggregates in concrete caused the reduction of the compressive strength. On the other hand, as increasing the replacement ratio of rapid chilled steel slag aggregates, the compressive strength was enhanced. Furthermore, the optimum use of rapid chilled steel slag aggregates was suggested up to 20~30% of fine aggregates and the use of it could be helpful to expand the replacement rate of recycled aggregates.
Keywords
recycled concrete; recycled coarse aggregate; rapid chilled steel slag; compressive strength; bleeding rate;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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