ABSTRACT
X-ray CT imaging was conducted for a consolidated clay in air-dry test, which is defined as the element test. It was found that the distribution of CT values in the specimen was not uniform during desiccation. Then the representative CT value, CT *, of the entire specimen was computed during the desiccation process, during which the specimen transitioned from saturated to unsaturated state. The relations of w–CT * and ρ t–CT * can be evaluated as bilinear relations, which bend near the shrinkage limit, w s. Before or after w s, there are conditions where the value of CT * is the same even though the values of w and ρ t are different. The relationship of ρ t–CT * during clay desiccation differs from that of solid materials and aqueous solutions.
