Journal of the Japan Society of Engineering Geology
Online ISSN : 1884-0973
Print ISSN : 0286-7737
ISSN-L : 0286-7737
On the Swelling Behaviours of the Artificially Crushed Tertiary Mud-stones
Yoshiro HAYASHIDA
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1975 Volume 16 Issue 3 Pages 132-140

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Abstract
In this paper the property of free swelling of artificially crushed Tertiary (Kobe, Tsuyama and Mizunami group) mudstone is discussed. The degrees of free swelling depend on the the content of active clay minerals, such as montmorillonite and vermiculite, and the water contents are decided with pF value which is determined by soil suction, i.e. The results show that the degrees of free swelling are in proportion to the content of montmorillonite minerals in a soil and the water contents at a certain soil suction except Mizunami group mudstones.
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