Research Article
Evaluation of Concrete Durability Performance with Sodium Silicate Impregnants
Table 5
Summary of modified properties tests.
| | Test items | Concrete-21 MPa (% to control of 21 MPa) | Concrete-34 Mpa (% to control of 34 MPa) | | Control | C type | I type | Control | C type | I type |
| | Porosity (%) | 25.8 (100.0) | 19.2 (74.4) | 16.2 (62.8) | 20.2 (100.0) | 18.5 (91.7) | 9.2 (45.4) | | Chloride diffusion coefficient (m2/sec) | 2.61 (100.0) | 2.23 (85.4) | 2.23 (85.4) | 1.55 (100.0) | 1.11 (71.6) | 1.16 (74.8) | | Compressive strength (MPa) | 25.0 (100.0) | 28.1 (112.4) | 30.3 (121.2) | 29.8 (100.0) | 34.0 (114.1) | 34.6 (116.1) | | Water permeability (10−14 m/sec) | 170.7 (100.0) | 85.4 (50.0) | 77.6 (45.4) | 153.8 (100.0) | 42.0 (27.3) | 39.4 (25.6) | | Air permeability (10−16 m2) | 2.3 (100.0) | 2.0 (86.9) | 2.0 (86.9) | 2.0 (100.0) | 1.8 (90.0) | 1.7 (85.0) | | Absorption (%) | 2.7 (100.0) | 0.7 (25.7) | 0.5 (16.9) | 2.1 (100.0) | 0.5 (25.9) | 0.4 (18.5) |
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