CONSIDERATION ON THE AGGREGATE EFFECT OF STEEL SLAG-DREDGED SOIL MIXTURES

Abstract

 Steel slag-dredged soil mixtures, which is an effective utilization technology for dredged soil, is organized as a viscous soil (a material designed only with adhesive strength c) as its soil characteristics. On the other hand, the steel slag-dredged soil mixtures is composed of solidified dredged soil mixed with aggregate, and the effect of the mixture of aggregate on the shear behavior is unclear. Therefore, we examined the uniaxial compression strength and triaxial compression test. As a result, it was confirmed that Steel slag-dredged soil mixtures, which is a material in which aggregate is mixed with solidified soil, exhibits an internal friction angle φ as compared with solidified soil due to the mixing effect of aggregate. However, the conditions for the strength development level are not clear, and various factors such as the properties of the soil to be solidified, the aggregate ratio, the aggregate properties, the strength development level, and the restraint conditions have an effect, and it has been confirmed that the strength decreases depending on the conditions. Therefore, elucidation of the mechanism of the aggregate mixing effect is a future task.