2021 Volume 77 Issue 2 Pages 159-171
In this study, converter slag, which has problems with expandability and pretreatment to prevent it, was studied. The advantages of converter slag as a ground improvement material were studied, focusing on its frictional properties, grain size characteristics, and hydraulic properties. The present study showed that mixing fine grained soil with gravel and sand-rich converter slag improved the particle size distribution of the soil mixture. As a result, the compaction characteristics of the mixtures were greatly improved and the lack of compaction was less likely to occur regardless of the compaction method. It was also found that the ground strength of the soil mixture increased with the mixing rate of the converter slag, and that the fine-grained soil acted as a cushion to reduce the expansion of the converter slag. Furthermore, the effect of mixing slag into the soil was found to increase the improvement of the cement by improving the particle size distribution, alkalization, and decreasing the unit water volume for mixing of target soil.
