Research Article
A Study on the Durability of Dispersive Soils Improved by Alum in Western Jilin Province of China
Table 3
The results of soil sample dispersibility determination.
| | Double hydrometer test | Pinhole test | Crumb test | Percentage of exchangeable sodium ion test | | Dispersion (%) | Water head (mm) | Duration (min) | End pinhole (mm) | ESP (%) |
| | 77.52 | 50 | 5 | 1.9 | Disintegrated in 2 min; an easily visible cloud of suspended colloids | 29.8 |
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