Study on the mechanical properties of lime-stabilized soil with waste material

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06216
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geotechnical engineering
• Research Institution: Ishikawa National College of Technology
• Principal Investigator: SHIGEMATSU Hiroaki 石川工業高等専門学校, その他部局等, 教授 (90353268)
• Research Collaborator: TANAKA Hitoshi 株式会社 田中建設
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: せん断 / 靭性

Outline of Final Research Achievements

In order to clarify the mechanical properties of lime-stabilized soil with waste material (short-fiber made from polyester), a series of laboratory tests at different mixture rate of the short-fiber were carried out. The experiments involve consolidated undrained triaxial compression (CUb) test, consolidated drained triaxial compression (CD) test. The following conclusions are obtained from this study: (1) The shear strength of the lime-stabilized soil increases slightly by mixing appropriate amount of the short-fiber. But if the amount of the short-fiber is putting into the soil too much, the strength of the soil decreases inversely. (2) On the other hand, mixing the short-fiber into the lime-stabilized soil has demonstrated a very high effect against strain-softening of the soil material.

Free Research Field

地盤工学