Abstract
The self-calibrating surface wave transmission method is a promising nondestructive technique for surface-breaking crack depth inspection of concrete. Determination of crack depth using the cut-off frequency in the transmission function (TRF) is difficult, however, in part due to the variability of the measurement data. In this paper, the spectral wave-energy transmission method, which employs the self-calibrating configuration, is proposed for crack-depth estimation in concrete structures. Results from an experimental study carried out on a concrete slab with varying crack (notch) depths are reported. The effectiveness of the proposed method is validated by comparing the conventional time-of-flight and cut-off frequency-based methods. The results show that spectral energy transmission has excellent potential as a practical and reliable inplace nondestructive method for in-place crack depth estimation in concrete structures.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 510-516 |
| Number of pages | 7 |
| Journal | ACI Materials Journal |
| Volume | 105 |
| Issue number | 5 |
| State | Published - Sep 2008 |
Keywords
- Crack depth
- Nondestructive testing
- Spectral energy transmission
- Stress waves
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science