Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)
Online ISSN : 2185-6516
ISSN-L : 2185-6516
Paper (In Japanese)
WHITE SEDIMENTS ON SURFACE OF LIME STABILIZED CLAY UNDER SEAWATER AND ITS DETERIORATION SUPPRESSION EFFECT
Hiroyuki HARADaisuke SUETSUGUHiroshi MATSUDATakeshi KAMEI
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2017 Volume 73 Issue 2 Pages 224-232

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Abstract

 When chemical stabilized soil is exposed to seawater, white color sediments may be observed at boundary between seawater and the soil. In this study, in order to investigate difference of calcium leaching behavior and mechanical deterioration degree of stabilized soil due to presence of the sediments on the surface of lime stabilized clay, an immersion test which was simulated marine environment was conducted. As a result, white color sediments were generated on the surface of the lime stabilized clay specimen with relatively high stabilizer content. The sediments were estimated spherical magnesium hydroxide by scanning electron microscopy observation and elemental analysis, and it is verified that calcium leaching and mechanical deterioration of stabilized clay were suppressed due to fine structure of the sediments.

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© 2017 by Japan Society of Civil Engineers
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