Research Article
Using Expert Opinion to Quantify Uncertainty in and Cost of Using Nondestructive Evaluation on Bridges
Table 7
Concrete and Steel NDE method cost ranges as indicated by participant responses.
| | Time to run a test (hours) | Time to analyze data (hours) | Time to train an inspector (days) | Monetary cost for equipment ($) | Number of inspectors needed (#) |
| Concrete NDE methods | | | | | | Cover meters/pachometer | 8–10 hours | 4–8 hours | 2–14 days | $1500–$3000 | 2 inspectors | Electrical potential | 10–15 hours | 4–8 hours | 7–14 days | $1500–$3000 | 2-3 inspectors | Impact echo | 10–15 hours | 8–12 hours | 21+ days | $6000+ | 3 inspectors | Mechanical sounding | 4–8 hours | 2–4 hours | 2–7 days | 0–$500 | 2 inspectors | Radar | 8–10 hours | 8–12 hours | 21+ days | $6000+ | 3 inspectors | Rebound hammer | 4–8 hours | 2–4 hours | 7–14 days | $500–$3000 | 2 inspectors | Thermal | 10–15 hours | 8–12 hours | 14–21 days | $6000+ | 3 inspectors | Ultrasonic testing | 8–10 hours | 4–8 hours | 21+ days | $6000+ | 2 inspectors | Visual inspection | 4–8 hours | 2–4 hours | 7–14 days | 0–$500 | 2 inspectors | Steel NDE methods | | | | | | Acoustic emission | 8–10 hours | 4–12 hours | 14–21+ days | $6000+ | 2 inspectors | Liquid penetrant testing | 8–10 hours | 2–4 hours | 2–7 days | 0–$1500 | 2 inspectors | Magnetic particle testing-crack detection | 8–10 hours | 2–4 hours | 7–14 days | $500–$1500 | 2 inspectors | Magnetic particle testing-weld inspection | 8–10 hours | 2–4 hours | 7–14 days | $500–$1500 | 2 inspectors | Radiography | 10–15 hours | 4–8 hours | 21+ days | $6000+ | 3 inspectors | Ultrasonic testing-crack detection | 8–10 hours | 2–4 hours | 21+ days | $6000+ | 2 inspectors | Ultrasonic testing-pin inspection | 8–10 hours | 2–8 hours | 21+ days | $3000–$6000+ | 2 inspectors | Ultrasonic testing-weld inspection | 8–10 Hours | 2–4 hours | 21+ days | $6000+ | 2 inspectors | Visual inspection | 4–8 Hours | 2–4 hours | 2–7 days | 0–$500 | 1-2 inspectors |
|
|