IMPROVEMENT IN THE MECHANICAL PROPERTIES OF COHESIVE SOILS BY MIXING CARBIDE POSSESSING WATER ABSORPTION PROPERTY
作者单位：Associate ProfessorDepartment of Civil EngineeringKyushu University6-10-1 HakozakiHigashi-kuFukuoka 812-8581Japan Associate Professor Department of Civil Engineering Kyushu University 6-10-1 Hakozaki Higashi-ku Fukuoka 812-8581 Japan Deputy managerKurimoto Ltd. Kyushu BrachHakata-kuFukuokaJapan
会议名称：《中日岩土工程学术会议》
会议日期：2005年
学科分类：081401[工学-岩土工程] 08[工学] 0814[工学-土木工程]
关 键 词：Volcanic Cohesive Soils Carbide Cone Penetration Test Trafficability
摘 要：正 In order to improve the mechanical properties of volcanic cohesive soils, they are usually stabilized by adding cement or lime. However, this method has certain drawbacks such as insufficient hardening or the leaching of hexavalent chromium from cement. Each year, a large amount of mown grass is generated from embankments and river areas. Most of this grass is either burnt in a field or disposed, while a part of it is used in composting. A technique for the carbonization of mown grass has been developed. Carbide is a porous material with a high capacity for water absorption. Therefore, the mown grass carbide can be used for water purification and soil improvement. In this study, the strength and leaching properties of cement-treated soils mixed with charcoal are investigated by performing unconfined compression and by conducting leaching tests. Furthermore, a cone penetration test is performed on the volcanic cohesive soils using the carbide obtained from mown grass, and the improvement in trafficability by mixing carbide and lime is clarified.