粘土のチクソトロピーに関する研究

概要

論文の詳細を見る
The shear strength of clay increases with time of aging after remolding by thixotropy phenomenon. As this phenomenon is controlled by many complicated factors, the present State is that very little explanation has been made of the mechanism. It this paper, the following items have been studied experimentally. 1) The thixo-tropic behavior of remolded aged clays at low water content. 2) The fabric change of montmorillonite increase with time of aging. Results which were obtained from this study are as follows : 1) The thixotropy phenomenon of remolded clay at low water content appears remarkably as the change of secant modulus E_<50> and failure strain ε_f more than that of unconfined compressive strength qu. And remolded aged clay at low water content showed approximately reversible properties as in the case of sample at high water content. 2) According to scanning electron microscope, the increase of strength with time of aging of montmorillonite may be caused due to the fact that filmy structure changes into ped increase with time of aging. This assumption was also confirmed by the fact that secant modulus E_<50> from the different test increased as ped was formed more clearly.
日本粘土学会の論文
1982-06-25