ROLES OF STRUCTURAL BONDING AND PARTICLE PHYSICAL PROPERTY IN ONE-DIMENSIONAL COMPRESSION BEHAVIOUR OF BONDED GRANULAR GEOMATERIALS

Abstract

In order to clarify the effects of bonding and physical properties of sand particle on one-dimensional compression property of bonded granular geomaterials, a serious of tests was carried out. Four kinds of sands were mixed with a cement agent to prepare the bonded materials. A degree of bonding was varied with cement content and examined from the splitting test. As bonding developed, a compression yield stress increased and a compression curve grew to protrude on the right side of the normal compression line of the non-bonded material. These changes of compression behaviour were attributed to homogenization of microscopic contact load distribution owing to hardening of the cement agent at contact points.