Research Article
Experimental Study on Physical-Mechanical Properties of Expansive Soil Improved by Multiple Admixtures
Table 2
Physical index and chemical composition of coal gangue.
| | Physical index | Rate of disintegration (%) | Ignition loss rate (%) | Free swelling rate (%) | Water absorption (%) | Crushing value (%) | Strong values (%) | | 0.5 | 15.2 | 13.7 | 0.5 | 21.1 | 12 |
| | Chemical composition | SiO2 (%) | Al2O3 (%) | Fe2O3 (%) | CaO (%) | MgO (%) | C (%) | | 63.2 | 23.9 | 3.7 | 1.9 | 1.4 | 3.1 |
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