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Table 3 Uniaxial compressive strengths (Rc) at the fracture point obtained on the starting and doped (+ 5 and + 10% of graphite powder) bentonitic grouts
From: Doped bentonitic grouts for implementing performances of low-enthalpy geothermal systems
Fc (N) | Rc (N/mm2) | |
|---|---|---|
Starting material | ||
June 30, 2016 (14 days) | 4370 | 2.73 |
June 30, 2016 (14 days) | 4680 | 2.93 |
July 14, 2016 (28 days) | 4850 | 3.03 |
July 14, 2016 (28 days) | 4870 | 3.04 |
July 14, 2016 (28 days) | 5860 | 3.66 |
July 14, 2016 (28 days) | 5740 | 3.59 |
Starting material + graphite 5% | ||
June 30, 2016 (14 days) | 9020 | 5.64 |
June 30, 2016 (14 days) | 8830 | 5.52 |
July 14, 2016 (28 days) | 9830 | 6.14 |
July 14, 2016 (28 days) | 9620 | 6.01 |
July 14, 2016 (28 days) | 10,150 | 6.34 |
July 14, 2016 (28 days) | 10,230 | 6.39 |
Starting material + graphite 10% | ||
June 30, 2016 (14 days) | 8150 | 5.09 |
June 30, 2016 (14 days) | 8910 | 5.57 |
July 14, 2016 (28 days) | 11,520 | 7.2 |
July 14, 2016 (28 days) | 11,320 | 7.08 |
July 14, 2016 (28 days) | 10,630 | 6.64 |
July 14, 2016 (28 days) | 10,750 | 6.72 |