ブラウザの設定でJava Scriptの使用を有効にしてご利用ください。
出典:Wikipedia
出典:『Wikipedia』 (2011/03/15 07:11 UTC 版)
Expansive clay is a clay that is prone to large volume changes that are directly related to changes in water content. Montomorillonite mineral is responsible for the expansive nature of the soil.
Expansive clay