Research Article
Experimental Study on Physical-Mechanical Properties of Expansive Soil Improved by Multiple Admixtures
Table 1
Physical index and chemical composition of expansive soil.
| | Physical index | Liquid limit (%) | Plastic limit (%) | Plasticity index (%) | Maximum dry density (g·cm−3) | Free swelling rate (%) | Optimum moisture content (%) | | 51.50 | 23.56 | 27.94 | 1.80 | 53.1 | 19.0 |
| | Chemical composition | SiO2 (%) | Al2O3 (%) | Fe2O3 (%) | CaO (%) | MgO (%) | K2O (%) | | 45.5 | 26.4 | 11.1 | 0.25 | 1.6 | 2.4 |
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