Research Article
Effect on the Resistance of Concrete Acid Corrosion in Superficial Soil Layers
Table 4
The corrosion test results of concrete at urban and rural observation stations.
| Number | Sample numbers | Stations | (%) | Compressive strength (MPa) | Corrosion index K (%) | 3 months | 6 months | 9 months | 12 months | 3 months | 6 months | 9 months | 12 months |
| F-1 | 12 | Urban | 0 | 15.79 | 15.84 | 15.71 | 15.83 | 0 | 0 | 0 | 0 | F-2 | 12 | 5 | 14.34 | 12.92 | 10.87 | 9.70 | 9.20 | 18.45 | 30.81 | 38.73 | F-3 | 12 | 10 | 12.32 | 9.86 | 7.85 | 6.81 | 21.96 | 37.75 | 50.00 | 56.95 | F-4 | 12 | Rural | 0 | 15.98 | 15.99 | 15.88 | 15.97 | 0 | 0 | 0 | 0 | F-5 | 12 | 5 | 14.97 | 14.53 | 12.26 | 10.96 | 6.34 | 9.13 | 22.79 | 31.40 | F-6 | 12 | 10 | 14.16 | 11.99 | 10.25 | 9.45 | 11.40 | 25.00 | 35.48 | 40.83 |
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