Research Article
Using Expert Opinion to Quantify Uncertainty in and Cost of Using Nondestructive Evaluation on Bridges
Table 2
Concrete and steel NDE methods response descriptive statistics for the bias.
| | | Average | Standard deviation |
| | Concrete NDE methods | | | | Cover meters/pachometer | 6.00 | 0.926 | | Impact echo | 5.40 | 0.894 | | Radar | 5.57 | 1.272 | | Ultrasonic testing | 5.71 | 0.488 | | Visual inspection | 5.89 | 0.782 | | Steel NDE methods | | | | Acoustic emission | 5.50 | 1.000 | | Radiography | 5.71 | 0.488 | | Ultrasonic testing-crack detection | 5.88 | 0.835 | | Ultrasonic testing-pin inspection | 5.89 | 0.782 | | Ultrasonic testing-weld inspection | 5.86 | 0.900 | | Visual inspection | 5.67 | 0.707 |
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