Table 9 Summary of compressive strength of concrete based on developed correlation equation with correlation proposed in this study for core.
From: Compressive strength assessment of concrete with brick chips using the CAPO-test
Target Strength (MPa) | Age of concrete (Days) | Average CAPO force per batch (kN) | Developed correlation* Average Estimated compressive strength (MPa) | Proposed correlation—Average Estimated compressive strength (MPa) | Percentage different (%) |
|---|---|---|---|---|---|
20 MPa | 14 | 16.9 | 20.01 | 20.12 | −1 |
25 MPa | 19.0 | 23.12 | 23.13 | 0 | |
30 MPa | 21.6 | 26.81 | 26.77 | 0 | |
20 MPa | 28 | 18.2 | 22.00 | 22.04 | 0 |
25 MPa | 19.6 | 23.96 | 23.95 | 0 | |
30 MPa | 23.6 | 29.77 | 29.74 | 0 | |
20 MPa | 56 | 19.9 | 24.42 | 24.41 | 0 |
25 MPa | 21.8 | 27.10 | 27.06 | 0 | |
30 MPa | 24.4 | 30.86 | 30.84 | 0 | |
20 MPa | 90 | 20.1 | 24.71 | 24.69 | 0 |
25 MPa | 22.5 | 28.11 | 28.07 | 0 | |
30 MPa | 25.9 | 33.10 | 33.13 | 0 |
