Abstract
This paper describes chemical and physical properties of 15 weathered soils of the Sangun metamorphic rocks. Also, compaction and CBR characteristics of the soils are discussed in terms of applicability for filling material. Main conclusions are as follows. The Sangun metamorphic rocks mainly distributed in Yamaguchi prefecture are pelitic schist, basic schist and serpentinite. The finer and clay contents of the pelitic schist are lower than those of the basic schist and the serpentinite. Compaction tests on the pelitic schist showed a better result, compared with the others. There exists a good correlation between the maximum dry density, the contents of SiO2 and Fe2O3, the finer content and the ignition loss, respectively. Because the modified CBR values of the soils are under about 7.5%, the cement stabilization is examined to utilize the soils as filling material.