Research Article
Comparative Study of Strength and Corrosion Resistant Properties of Plain and Blended Cement Concrete Types
Table 5
Rapid chloride permeability test (RCPT) parameters for OPC, PPC, and PSC M30 and M40 grade concrete types.
| Grade | 28 days | 90 days | Charge passed (coulomb) | Free chloride contents (ppm) | Chloride diffusion coefficient (cm2s−1) × 10−10 | Charge passed (coulombs) | Free chloride contents (ppm) | Chloride diffusion coefficient (cm2s−1) × 10−10 |
| OPC M30 | 669 | 749 | 2.4 | 630 | 579 | 1.9 | PPC M30 | 281 | 681 | 1.8 | 220 | 528 | 1.5 | PSC M30 | 226 | 481 | 1.0 | 200 | 380 | 1.4 | OPC M40 | 626 | 540 | 1.8 | 600 | 520 | 1.4 | PPC M40 | 261 | 532 | 1.5 | 180 | 483 | 0.8 | PSC M40 | 204 | 596 | 0.5 | 200 | 393 | 0.6 |
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