A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Field experience with nondestructive tools for bridge deck condition assessment
In the past, Illinois Department of Transportation (IDOT) has tried to take advantage of nondestructive testing technologies to enhance the efficiency of bridge deck condition evaluations, with mixed success. In two recent contracts for condition assessment of a total of 32 bridge decks located throughout central Illinois, a new combination of nondestructive and visual survey tools was selected to address some of the shortcomings that had become evident in earlier condition evaluation programs. This paper describes the technologies used, the reasons for their selection, and the analysis procedures used in reducing the mass of data acquired to a manageable format. The results of the bridge deck condition surveys performed using Impulse Response testing and Ground Penetrating Radar (GPR) showed good correlation with visual survey data and results of laboratory tests performed on core samples. This work has confirmed that the Impulse Response method can provide useful data in situations where GPR is limited or inconclusive. The Impulse Response method is sensitive to the reduction in concrete density and/or the increased porosity that is typically associated with elevated chloride levels.
Field experience with nondestructive tools for bridge deck condition assessment
In the past, Illinois Department of Transportation (IDOT) has tried to take advantage of nondestructive testing technologies to enhance the efficiency of bridge deck condition evaluations, with mixed success. In two recent contracts for condition assessment of a total of 32 bridge decks located throughout central Illinois, a new combination of nondestructive and visual survey tools was selected to address some of the shortcomings that had become evident in earlier condition evaluation programs. This paper describes the technologies used, the reasons for their selection, and the analysis procedures used in reducing the mass of data acquired to a manageable format. The results of the bridge deck condition surveys performed using Impulse Response testing and Ground Penetrating Radar (GPR) showed good correlation with visual survey data and results of laboratory tests performed on core samples. This work has confirmed that the Impulse Response method can provide useful data in situations where GPR is limited or inconclusive. The Impulse Response method is sensitive to the reduction in concrete density and/or the increased porosity that is typically associated with elevated chloride levels.
Field experience with nondestructive tools for bridge deck condition assessment
Praktische Erfahrungen mit zerstörungsfreien Werkzeugen zur Zustandsbewertung von Brückenbelägen
Hertlein, B.H. (author) / Calhoun, B.L. (author)
2006
9 Seiten
Conference paper
Storage medium
English
Bridge Deck Condition Survey by Radar: Ontario Experience
| British Library Conference Proceedings | 1994
A comparison of nondestructive evaluation methods for bridge deck assessment
| Tema Archive | 2001
Combination of nondestructive evaluations for reliable assessment of bridge deck
| DOAJ | 2011
Nondestructive Assessment of Unknown Bridge Condition
| British Library Conference Proceedings | 1999
Nondestructive Assessment of Unknown Bridge Condition
| British Library Conference Proceedings | 1998