Research Article
Feasibility of Pulverized Oyster Shell as a Cementing Material
Table 5
Unconfined compression strength of soil specimens for groups with different ages.
| Time (day) | Compressive strength (N/cm2) | A | B | C | D | E |
| | 22.1 | 23.5 | 20.7 | 15.6 | 21 | 7 days | 25.7 | 26.2 | 17.4 | 17.4 | 16.5 | | 28.2 | 17.2 | 20.2 | 19 | 12.2 |
| Average | 25.3 | 22.3 | 19.4 | 17.3 | 16.6 |
| | 27.5 | 21 | 15.9 | 23.5 | 20.9 | 28 days | 29 | 17 | 17.5 | 22.8 | 19.4 | | 27.2 | 21.4 | 21.9 | 23.5 | 17.5 |
| Average | 27.9 | 19.8 | 18.4 | 23.3 | 19.3 |
| | 28.1 | 19.6 | 16.8 | 21.6 | 17.5 | 75 days | 27.3 | 18.1 | 18.5 | 27.5 | 16.1 | | 31.9 | 20.1 | 19.6 | 25.9 | 18.4 |
| Average | 29.1 | 17.3 | 18.3 | 25 | 17.3 |
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