Based on the above,the authors discussed the relation between the montmorillonite content,the exchangeable cationic type between layer and its amount,the montmorillonite structure and the swelling performance of bentonite.

The data from the determination of cation exchange capacity and montmorillonite contents in expansive soils have been used in evaluation and classification of expansive soils according to occupation standard of TB 10042-95.

The data of chemical composition and phase analysis showed that the principal mineral composition of Smecta is Ca Na based montmorillonite,i.

It was shown by field investigation and lab tests that the types of altered rocks were mostly those of montmorillonitization,and the altered clay mineral was mainly pure montmorillanite,which rendered the altered rock both soft and expansive.

The Preparation of Ato Core-Shell Structure Nano-Conductive Powder With Montmorillonite Substrate;

Organic modification technics and gel performance of montmorillonite;

Preparation and characterization of polylactide acid/montmorillonite nanocomposite;