Table 4 Lightweight concrete mixture test results.
From: Flexural Behavior of Post-tensioned Lightweight Concrete Continuous One-Way Slabs
No. | Slump (mm) | Compressive strength (MPa) | Splitting tensile strength | Modulus of rupture | Modulus of elasticity (MPa) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
1Â day | 3Â days | 7Â days | 28Â days | 56Â days | 92Â days | \( f_{sp} \) (MPa) | \( \frac{{f_{sp} }}{{\sqrt {f_{ck} } }} \) | \( f_{r} \) (MPa) | \( \frac{{f_{r} }}{{\sqrt {f_{ck} } }} \) | \( E_{c} \) | ||
1 | 220 | 4.9 | 15.1 | 30.4 | 36.7 | 38.7 | 39.3 | 3.19 | 0.53 | 2.81 | 0.46 | 11,614 |
2 | 230 | 4.7 | 13.5 | 24.1 | 29.2 | 30.5 | 31.9 | 2.62 | 0.49 | 3.15 | 0.58 | 13,442 |
3 | 242 | 5.2 | 16.7 | 29.4 | 35.2 | 38.5 | 39.3 | 2.53 | 0.47 | 2.91 | 0.49 | 11,280 |