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http://dx.doi.org/10.14190/JRCR.2017.5.3.253

The Effect of Combinations of Electric Arc Furnace Slag and Lime Stone aggregates on Engineering Properties of Ultra High Strength Concrete with 80MPa  

Han, Min-Cheol (Department of Architectural Engineering, Cheong-ju University)
Moon, Byeong-Yong (Department of Architectural Engineering, Cheong-ju University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.5, no.3, 2017 , pp. 253-260 More about this Journal
Abstract
The aim of research is to investigate various physical properties of ultra high strength concrete of 80MPa class using a combination of limestone aggregate and electronic arc furnace oxidizing slag aggregate. For aggregate combinations, granite and limestone are used for coarse aggregate, granite and limestone are also used for fine aggregate. And also, limestone fine aggregate is replaced by electronic arc furnace oxidizing slag aggregate of 25% and 50%. Test results indicated that flowability and compressive strength increased when limestone fine aggregate was used compared to that using granite fine aggregate due to higher modulus of elasticity by limestone. Also substitution of electronic arc furnace oxidizing slag aggregate resulted in a decrease of compressive strength slightly. It is found that the use of electronic arc furnace oxidizing slag aggregate and limestone aggregate would be favorable for reducing the autogenous shrinkage by as much as 9~25%.
Keywords
Electronic arc furnace oxidizing slag; Lime stone; Ultra high strength concrete; Autogenous shrinkage;
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Times Cited By KSCI : 5  (Citation Analysis)
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