Abstract
In this paper, a new technique of estimating the layer structure and contents of clay minerals are proposed by paying attention to the relationship between the moisture characteristics of the clay minerals and heating temperature.
The moisture contents of the standard specimens made by mixing Monmorillontite, Kaolinite and Quartz in various proportions were measured based on the weight loss with heating.
The results are summarized as follows: 1) The applicability of ignition loss test was recognized based on the results of differential thermal analysis test. 2) The dehydration of constitution water occured at 530°C in two layer clay mineral and at 800°C in three layer clay mineral.
