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Unconfined Compressive Strength of Reduced Slag-Mixed Clay  

Cho, Minjae (인하대학교 공과대학 토목공학과)
Yoon, Yeowon (인하대학교 공과대학 토목공학과)
Kim, Jaeyoon (인하대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean GEO-environmental Society / v.13, no.6, 2012 , pp. 33-39 More about this Journal
Abstract
With the increase of steel production research interest on the recycling of slag as a by-product also increases steadily. Currently in Korea a lot of researches on blast-furnace slag have been made. However, the researches on the steel slag have been rarely made. Also, a research of steel slag, especially the use of oxidation furnace slag as aggregates for concrete progress, is performing actively, but the research results on the furnace slag are almost nothing. Recently, the research about the furnace slag as backfill material and embankment material confirmed the possibility of the clay soil amendment. Therefore, the object of this study is to review the possibility as civil engineering materials for soil improvement and to find the optimum mixture ratio of furnace slag. This research analyzed the ingredient component of the reduced slag by SEM, XRF, XRD tests and examined the strength increase using unconfined compression tests when the clay and reduced slag are mixed each other. Through this test, the definite strength increase is confirmed according to the mixture of the reduced slag and the possibility of soil improvement is also confirmed based on this result. The object of the study is both utilizing the by-product for civil engineering purpose and effective recycling by the application of the furnace slag for soil improvement.
Keywords
Reduced slag; Recycled material; The unconfined strength; Soft ground;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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