Research Article
An Experimental Study on the Geotechnical, Mineralogical, and Swelling Behavior of KPK Expansive Soils
Table 1
Mineralogical properties of fundamental clay minerals.
| | Clay minerals | Bond intensity | Isomorphous substitution | Shrink and swell | CEC (meq/100 g) | LL (%) | K (m/s) |
| | Kaolinite (1 : 1 clay mineral) | Hydrogen, strong | Low | Very low | 3–15 | 30–75 | 10−5∼10−7 | | Illite (2 : 1 clay mineral) | K-ion, moderate | Moderate | Low | 10–40 | 60–120 | 10−6∼10−8 | | Montmorillonite 2 : 1 coal mineral | Wonder wall, weak | High | Very high | 29–150 | Up to 900 | 10−7∼10−9 |
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