Table 4 Credibility of the three indexes
From: Comprehensive index condition assessment of structural concrete based on surface wave techniques
Void volume ratio (%) | Index credibility | ||
|---|---|---|---|
P-wave velocity Cred 1 (%) | R-wave velocity Cred 2 (%) | Attenuation coefficient Cred 3 (%) | |
0 | 100.00 | 100.00 | 100.00 |
5 | 90.41 | 100.00 | 91.16 |
10 | 97.53 | 80.13 | 100.00 |
15 | 98.45 | 100.00 | 80.34 |
20 | 99.28 | 98.49 | 100.00 |
30 | 100.00 | 100.00 | 100.00 |