| Issue |
Mechanics & Industry
Volume 16, Number 1, 2015
|
|
|---|---|---|
| Article Number | 103 | |
| Number of page(s) | 6 | |
| DOI | https://doi.org/10.1051/meca/2014064 | |
| Published online | 16 September 2014 | |
Non-destructive evaluation of the spatial variability of reinforced concrete structures
University of Bordeaux, I2M, UMR 5295,
33400
Talence,
France
a Corresponding author:
ngoc-tan.nguyen@u-bordeaux.fr
Received:
17
July
2013
Accepted:
5
July
2014
Spatial variability of concrete is an important characteristic, which qualifies the non-homogeneity of concrete properties within structural components. Assessing it can be of great interest for damaged areas localization and for reliability analysis of structures. A two-stage experimental program was carried out using non-destructive testing (NDT) on laboratory concrete slabs in outdoor environment and on an existing bridge. The spatial variability was quantified at three scales: point (repeatability), local and global, for several NDT techniques (ultrasonic pulse velocity, electrical resistivity, radar and rebound hammer). The experimental results were analyzed using statistical and geostatistical tools.
Key words: Concrete / non-destructive testing / spatial variability / uncertainty / spatial correlation / variogram
© AFM, EDP Sciences 2014
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