Research Article
Sodium Sulphate Effect on Cement Produced with Building Stone Waste
Table 9
Compressive and flexural strength values of cement mortar bars kept in sodium sulphate.
| | Experiments | Solution levels (mg/L) | The specimens exposed to Na2SO4 solution | | RC | DC1 | DC2 | DC3 | AC1 | AC2 | AC3 | MC1 | MC2 | MC3 |
| | Compressive strength (N/mm2) | 1500 | 44.7 | 36.7 | 32.49 | 12.63 | 34.15 | 17.69 | 17.12 | 30.82 | 19.61 | 17.36 | | 9000 | 40.5 | 34.4 | 21.85 | 18.53 | 27.42 | 26.59 | 15.2 | 29.49 | 23.51 | 15.95 | | 13500 | 37.1 | 25.6 | 21.52 | 11.13 | 27.17 | 22.18 | 21.93 | 30.99 | 18.11 | 17.95 |
| | Flexural strength (N/mm2) | 1500 | 7.56 | 6.44 | 5.95 | 4.82 | 6.27 | 6.25 | 5.95 | 6.14 | 6.16 | 6.00 | | 9000 | 7.43 | 4.71 | 4.8 | 4.16 | 6.69 | 6.71 | 6.5 | 4.37 | 6.5 | 5.84 | | 13500 | 7.33 | 4.5 | 4.78 | 3.84 | 7.17 | 6.67 | 5.91 | 6.46 | 6.04 | 5.95 |
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