能登泥岩の二・三の工学的性質(2)(農業工学)

概要

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Some results obtained from the laboratory and field tests which have been made to elucidate the weathering characteristics of mudstones are presented in this paper. To make clear explanation of the slaking mechanisum for the mudstones, the cementation materials in a pore of the mudstones were detected by electron probe X-ray micros-analyser (EPMA). Samples used in all tests are of neogen tertiary mudstones collected from Toyama and Ishikawa prefectures. The tests results are summarised as follows. 1) The mudstones were unstable for the solution of 350g of Na_3SO_4 in 1l of water. 2) Climate change, such as repeated wetting and drying over a long time, lead to disintegration of the mudstones on the ground, but it became clear after field tests in a soil bin that the lumps of these materials at 50cm under the ground surface were not influenced very much from climate change. 3) It was proved that the difference in the degree of slaking depended upon the solubility of the cementaiion materials detected from the mudstones by EPMA.
神戸大学の論文