Table 6 Relative difference of compressive strength of concrete made with brick chips based on CAPO, core and cylinder tests.
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) | Average Cylinder strength (MPa) | Core strength, MPa | Develop correlation for cylinder by Average compressive strength (MPa) | Develop correlation for core by Average compressive strength (MPa) | Difference Cylinder to Capo (%) | Difference Cylinder to Core (%) | Difference Core to Capo (%) |
|---|---|---|---|---|---|---|---|---|---|
20 MPa | 14 | 16.9 | 21.3 | 20.1 | 24.9 | 20.01 | −17 | 5 | 0 |
25 MPa | 19.0 | 27.2 | 22.5 | 28.4 | 23.12 | −4 | 17 | −3 | |
30 MPa | 21.6 | 32.4 | 25.4 | 32.6 | 26.81 | −1 | 22 | −6 | |
20 MPa | 28 | 18.2 | 27.8 | 22.7 | 27.2 | 22.00 | 2 | 18 | 3 |
25 MPa | 19.6 | 32.9 | 25.0 | 29.4 | 23.96 | 11 | 24 | 4 | |
30 MPa | 23.6 | 35.8 | 31.3 | 35.9 | 29.77 | 0 | 13 | 5 | |
20 MPa | 56 | 19.9 | 30.7 | 24.0 | 29.9 | 24.42 | 3 | 22 | −2 |
25 MPa | 21.8 | 33.6 | 26.2 | 32.9 | 27.10 | 2 | 22 | −4 | |
30 MPa | 24.4 | 36.1 | 30.7 | 37.1 | 30.86 | −3 | 15 | 0 | |
20 MPa | 90 | 20.1 | 31.5 | 25.3 | 30.2 | 24.71 | 4 | 20 | 2 |
25 MPa | 22.5 | 33.6 | 27.0 | 34.0 | 28.11 | −1 | 20 | −4 | |
30 MPa | 25.9 | 36.5 | 31.9 | 39.6 | 33.10 | −9 | 13 | −4 |
