[article]
| Titre : |
Comparison of NDT methods for assessment of a concrete bridge deck |
| Type de document : |
texte imprimé |
| Auteurs : |
Taekeun Oh, Auteur ; Seong-Hoon Kee, Auteur ; Ralf W. Arndt, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
305–314. |
| Note générale : |
applied mechanics |
| Langues : |
Anglais (eng) |
| Mots-clés : |
NDT Air-coupled impact echo Corrosion-induced delamination Infrared thermography Chain drag Concrete bridge deck |
| Résumé : |
The field application of three different nondestructive tests (NDTs)—air-coupled impact echo (IE), infrared (IR) thermography, and sounding (chain drag)—are evaluated in this paper, where an actual in-service concrete bridge deck is tested. Two different contactless IE test equipment sets are deployed as part of an effort to develop new rapid measurement methods. The IE data are presented as two-dimensional frequency maps, and the IR data are presented as temperature maps over the tested area. Sounding (chain-drag) result maps are also presented. For verification of the location of near-surface delamination damage, eight drilled core samples were extracted from the test area. The results obtained from each of the individual NDT methods show reasonably good agreement with the drilled cores in terms of locating near-surface delamination. Finally, the NDT methods are compared across general performance criteria, considering accuracy, testing practicality, and costs. The analysis shows that all of the evaluated NDT methods are comparable, and the chain-drag method is not more accurate and reliable for detection of shallow delamination in the deck. |
| ISSN : |
0733-9399 |
| En ligne : |
http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000441 |
in Journal of engineering mechanics > Vol. 139 N° 3 (Mars 2013) . - 305–314.
[article] Comparison of NDT methods for assessment of a concrete bridge deck [texte imprimé] / Taekeun Oh, Auteur ; Seong-Hoon Kee, Auteur ; Ralf W. Arndt, Auteur . - 2013 . - 305–314. applied mechanics Langues : Anglais ( eng) in Journal of engineering mechanics > Vol. 139 N° 3 (Mars 2013) . - 305–314.
| Mots-clés : |
NDT Air-coupled impact echo Corrosion-induced delamination Infrared thermography Chain drag Concrete bridge deck |
| Résumé : |
The field application of three different nondestructive tests (NDTs)—air-coupled impact echo (IE), infrared (IR) thermography, and sounding (chain drag)—are evaluated in this paper, where an actual in-service concrete bridge deck is tested. Two different contactless IE test equipment sets are deployed as part of an effort to develop new rapid measurement methods. The IE data are presented as two-dimensional frequency maps, and the IR data are presented as temperature maps over the tested area. Sounding (chain-drag) result maps are also presented. For verification of the location of near-surface delamination damage, eight drilled core samples were extracted from the test area. The results obtained from each of the individual NDT methods show reasonably good agreement with the drilled cores in terms of locating near-surface delamination. Finally, the NDT methods are compared across general performance criteria, considering accuracy, testing practicality, and costs. The analysis shows that all of the evaluated NDT methods are comparable, and the chain-drag method is not more accurate and reliable for detection of shallow delamination in the deck. |
| ISSN : |
0733-9399 |
| En ligne : |
http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000441 |
|
Ajouter le résultat dans votre panier Faire une suggestion Affiner la rechercheComparison of NDT methods for assessment of a concrete bridge deck in Journal of engineering mechanics, Vol. 139 N° 3 (Mars 2013)
