Research Article
Experimental Study on Mechanical Behavior of a New Backfilling Material: Cement-Treated Marine Clay
Table 3
Basic parameters of samples tested.
| | Test ID | Confining pressure (kPa) | Number of specimens | Sample diameter × sample height (mm × mm) | The quality in the air (g) | The quality in the water (g) | Density (g/cm3) | Average peak strength pp (kPa) |
| | 1 | 50 | 2 | 38.00 × 76.00 | 128.0 | 42.8 | 1.486 | 1201.1 | | 2 | 200 | 1 | 37.93 × 76.09 | 127.9 | 42.1 | 1.488 | 1385.8 | | 3 | 250 | 1 | 37.98 × 76.04 | 128.1 | 42.6 | 1.488 | 1448.1 | | 4 | 350 | 1 | 38.00 × 76.00 | 127.9 | 41.9 | 1.485 | 1779.3 | | 5 | 500 | 1 | 38.02 × 76.12 | 128.2 | 42.4 | 1.484 | 1822.8 | | 6 | 600 | 1 | 37.91 × 76.00 | 128.4 | 42.1 | 1.498 | 2080.1 | | 7 | 800 | 1 | 38.00 × 76.00 | 128.6 | 42.3 | 1.493 | 2760.0 | | 8 | ICT | 2 | 37.94 × 76.06 | 128.4 | 42.0 | 1.490 | — |
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Note: tests 1–7 are isotropic consolidated drained (CID) tests; test 8 is the isotropic compression test (ICT) for primary yield stress. |
