Research Article
Study on the Water-Physical Properties of the Cement-Plaster Bonded Rock-Like Materials
Table 5
Water-physical properties of common rocks.
| | Rock type | Water absorption (%) | Softening coefficient ηc | Cracks and pores | Permeability coefficient (cm/s) |
| | Granite | 0.1 ∼ 0.4 | 0.80 ∼ 0.98 | Dense and microcracks | 1.1 × 10−12 ∼ 9.5 × 10−11 | | Microcracks | 1.1 × 10−11 ∼ 2.5 × 10−11 | | Coarse cracks | 2.8 × 10−9 ∼ 7 × 10−8 |
| | Limestone | 0.1 ∼ 4.5 | 0.68 ∼ 0.94 | Dense | 3 × 10−12 ∼ 6 × 10−10 | | Microcracks and micropore | 2 × 10−9 ∼ 3 × 10−6 | | Porous | 9 × 10−5 ∼ 3 × 10−4 |
| | Sandstone | 0.2 ∼ 9.0 | 0.60 ∼ 0.97 | Dense | 10−13 ∼ 2.5 × 10−12 | | Porous | 5.5 × 10−6 |
| | Shale | 0.5 ∼ 3.2 | 0.55 ∼ 0.70 | Micropore | 2 × 10−10 ∼ 8 × 10−9 |
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