Several textural properties of compacted and cation-exchanged bentonite

The results showed that the macro-porosity (porous size>50 nm) and eventually the mesoporosity (porous size 2-50 nm) are affected by the uniaxial compaction. In this case, a transformation of the shape of the macro-pores network from tube to crack was observed. On the other hand, the swelling potential and water content are governed by the relative humidity and by the nature of interlayer cation.