Research Article
Effects of Oil Palm Shell Coarse Aggregate Species on High Strength Lightweight Concrete
Table 6
Ultrasonic pulse velocity (UPV) for concrete mixes made from different OPS species and age categories.
| | Mix code | UPV (km/s) | | 1 d | 3 d | 7 d | 14 d | 28 d | 56 d | 90 d |
| | OD1 | 3.49 | 3.75 | 3.92 | 3.94 | 3.96 | 4.02 | 4.04 | | OD2 | 3.50 | 3.80 | 3.93 | 3.95 | 4.00 | 4.01 | 4.05 | | OD3 | 3.51 | 3.83 | 3.93 | 3.95 | 4.01 | 4.03 | 4.05 | | OT1 | 3.47 | 3.51 | 3.81 | 3.59 | 3.92 | 3.94 | 3.95 | | OT2 | 3.48 | 3.52 | 3.85 | 3.61 | 3.92 | 3.95 | 3.96 | | OT3 | 3.48 | 3.52 | 3.88 | 3.62 | 3.93 | 3.95 | 3.97 | | CD1 | 3.52 | 3.92 | 3.94 | 3.96 | 4.06 | 4.10 | 4.12 | | CD2 | 3.52 | 3.93 | 3.95 | 4.05 | 4.09 | 4.11 | 4.12 | | CD3 | 3.82 | 3.96 | 4.08 | 4.10 | 4.12 | 4.13 | 4.14 | | CT1 | 3.48 | 3.62 | 3.89 | 3.94 | 3.94 | 3.95 | 3.99 | | CT2 | 3.49 | 3.63 | 3.90 | 3.92 | 3.94 | 3.95 | 4.00 | | CT3 | 3.50 | 3.63 | 3.91 | 3.92 | 3.95 | 3.96 | 4.01 |
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