Table 5 Concrete mixed proportion.
Mix | Experimental compressive strength (MPa) | Predicted Compressive Strength by ACI 209 (MPa) | |||
|---|---|---|---|---|---|
Control | 7Â days | 28dyas | 56Â days | 56Â days | 180Â days |
G5 | 26 | 24 | 26 | 26.3 | 27.8 |
G10 | 27 | 25 | 27 | 27.5 | 29.1 |
G15 | 28 | 27 | 28 | 29.4 | 31.1 |
G20 | 29 | 28 | 29 | 30.2 | 31.9 |
G25 | 32 | 29 | 32 | 31.3 | 33 |
G30 | 29 | 26 | 29 | 28.0 | 29.6 |