Table 3 Comparison of porosity change rate of resin grout specimens before and after corrosion in mine water environment.
From: Experimental investigation of the influence of mine water on mechanical properties of resin grout
Chemical solution | Soaking time (d) | pH value | Concentration (mol/L) | Original porosity (%) | Porosity after corrosion (%) | Porosity change rate (%) |
|---|---|---|---|---|---|---|
NaCl | 10 | 4 | 0.1 | 6.73 | 7.12 | 5.79 |
NaCl | 35 | 4 | 0.1 | 6.76 | 7.18 | 6.21 |
NaCl | 10 | 6 | 0.1 | 6.79 | 7.16 | 5.45 |
NaCl | 35 | 6 | 0.1 | 6.84 | 7.24 | 5.85 |
NaCl | 10 | 7 | 0.1 | 6.81 | 7.14 | 4.85 |
NaCl | 35 | 7 | 0.1 | 6.85 | 7.21 | 5.26 |
NaCl | 10 | 8 | 0.1 | 6.94 | 7.32 | 5.48 |
NaCl | 35 | 8 | 0.1 | 6.97 | 7.40 | 6.17 |
NaCl | 10 | 10 | 0.1 | 6.97 | 7.38 | 5.88 |
NaCl | 35 | 10 | 0.1 | 7.00 | 7.47 | 6.71 |
