Research Article
Experimental Study on the Compressive Strength of Big Mobility Concrete with Nondestructive Testing Method
Table 2
Rebound curve for concrete strength measurement and error.
| Regress model | Function expression | Correlative coefficient | Mean relative error (%) | Relative standard error (%) |
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Exponential function | | 0.824 | 12.43 | 15.33 | Exponential function | | 0.850 | 11.88 | 14.7 | Logarithm function | | 0.868 | 11.21 | 16.88 | Power function | | 0.850 | 11.17 | 14.05 | Power exponential function | | 0.824 | 12.43 | 15.33 | Complex-exponential function | | 0.852 | 11.04 | 13.75 |
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