International Session 国際セッション (2)

[CS2-08] Variation characteristics of the grain size distribution of gravel by rotary crushing and mixing method focused on single particle strength test

*金 在完¹、中島 典昭²、安福 規之¹ (1. 九州大学、2. 日本国土開発)

Keywords:Rotary crushing and mixing method, Single particle strength test, Grain size distribution, Box and whisker

A large amount of high-quality soils is required of large projects. But high-quality soil is insufficient. In this paper, the rotary crushing and mixing method was dealt for the following reasons. Twister method is applicable cohesive soil and soft rocks as well although the type of soil was difficult to handle for soil improvement and crushing and mixing are done in large quantities with conveyor belts. In order to make efficient use of the Twister method, this paper focused on the single particle strength test, and conducted a basic study on the grain size distribution of gravel materials.