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Clay Minerals and Geotechnical Index Properties of Marine Clays in East Asia

2002; Taylor & Francis; Volume: 20; Issue: 4 Linguagem: Inglês

10.1080/03608860290051921

1521-0618

Masami Ohtsubo, K Egashira, Hiroyuki Tanaka, Osamu Mishima,

Soil and Unsaturated Flow

Abstract Clay mineral composition and geotechnical index properties of marine clays collected from Singapore, Korea, and Japan were investigated, and the correlation of clay mineral composition with the consistency limits and activity of the clays was examined. Predominant clay minerals were kaolinite for Singapore clay, kaolinite, vermiculite, and illite for Pusan clay, and smectite for Hachirogata and Ariake clay from Japan. The activity of clay indicates that Singapore clay is classified as normal or inactive, Pusan clay as normal, and Hachirogata and Ariake clays mostly as active. Significant positive correlations were found between smectite percentage in bulk soil and the liquid and plastic limits of the clays. Keywords: Marine Clay Clay Mineral Smectite Liquid Limit Plastic Limit Activity