Granite and bentonite
The granite used in this study was sampled from a
domestic granite quarry site located at Deokjeong-myun,
Gyonggi-do, South Korea. The mineralogical and
chemical compositions of the granite are given in Tables
1 and 2, respectively (Baik et al., 2004). The bulk density
and porosity of the granite were determined to be
2.55 g/cm3 and about 0.0037, respectively.