Effects of Environmental Variables on Infrared Imaging of Subsurface Features of Concrete Bridges

@article{Washer2009EffectsOE,
  title={Effects of Environmental Variables on Infrared Imaging of Subsurface Features of Concrete Bridges},
  author={Glenn A. Washer and Richard Fenwick and Naveen Bolleni and Jennifer Harper},
  journal={Transportation Research Record},
  year={2009},
  volume={2108},
  pages={107 - 114}
}
Deterioration of concrete due to corrosion of embedded steel reinforcing bars and prestressing strands represents a significant challenge for inspection and maintenance engineers. Delaminations develop in the concrete manifest as spalling, which further exposes the steel to the corrosive environment and accelerates the deterioration process. The typical method for detecting these delaminations is hammer sounding, which requires hands-on access to the material under inspection. Specialized… 

Figures from this paper

Infrared Thermography for Detecting Subsurface Defects of Concrete Structures
Delamination is one of the serious types of deterioration in reinforced concrete structures. It could cause concrete spalling, exposed steel bars, and ultimately affects the structural integrity of
Modeling of Environmental Effects on Thermal Detection of Subsurface Damage in Concrete
A significant form of deterioration in concrete is corrosion of embedded reinforcing steel that can cause subsurface delaminations and spalling. Infrared thermography can be used to detect
APPLICATION OF THERMAL IR IMAGERY FOR CONCRETE BRIDGE INSPECTION
Detecting subsurface cracks and delaminations within concrete bridges has been always a challenge for bridge inspectors and transportation authorities. This type of subsurface deterioration can
Practical identification of favorable time windows for infrared thermography for concrete bridge evaluation
Abstract Infrared Thermography (IRT) is one of the nondestructive inspection techniques to detect delaminations in concrete bridge decks. These defects are identified by capturing the temperature
Guidelines for Thermographic Inspection of Concrete Bridge Components in Shaded Conditions
Infrared thermography has the potential to detect subsurface delaminations before spalling develops and could be used to improve the visual inspection of concrete bridges. The technology has
Statistical analysis of favorable conditions for thermographic inspection of concrete slabs
Infrared thermography has been successfully applied as a remote non-destructive testing approach for access to the internal conditions of reinforced concrete bridge slabs. Due to the different
Non-Destructive Testing of Bridge Deck Using Passive Infrared Thermography and Ground Penetrating Radar
Bridge decks in Canada are deteriorating rapidly due to exposure to various degradation mechanisms. Exposure to freezing and thawing cycles coupled with the ingress of chloride ions from de-icing
Combined Imaging Technologies for Concrete Bridge Deck Condition Assessment
Evaluating the condition of concrete bridge decks is an increasingly important challenge for transportation agencies and bridge inspection teams. Closing the bridge to traffic, safety, and time
Concrete Pavement Joint Diagnostics with Ultrasonic Tomography
An important issue in extending the life of jointed plain concrete pavement is the proper construction and maintenance of transverse joints. The capabilities of an ultrasonic tomography device in
Determination of Favorable Time Window for Infrared Inspection by Numerical Simulation of Heat Propagation in Concrete
Every bridge is subjected to a thorough inspection process every other year at most. Nondestructive evaluation techniques, especially noncontact methods, are gaining popularity to take part in
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 24 REFERENCES
APPLICATION OF GROUND-PENETRATING RADAR AND INFRARED THERMOGRAPHY TO PAVEMENT EVALUATION
New technologies have enabled the pavement engineer to develop a better picture of the pavement structure. Two of these new technologies are ground-penetrating radar and infrared thermography. Each
Detection of Common Defects in Concrete Bridge Decks Using Nondestructive Evaluation Techniques
The transportation infrastructure in the United States is deteriorating and will require significant improvements. Consequently, innovations in the area of transportation infrastructure maintenance
Application of infrared thermography to the non-destructive testing of concrete and masonry bridges
Abstract Within recent years there has been an increase in the use of NDT methods to detect defects and anomalies in various civil engineering structures. Infrared thermography, which has been
A critical review of infrared thermography as a method for non-destructive evaluation of FRP rehabilitated structures
The increasing use of fibre reinforced composites as externally bonded reinforcement on concrete as a means of rehabilitation has created a need for the development and implementation of rapid
Condition Analysis of Concrete Bridge Decks in Utah
Given the need for increasingly cost-effective strategies for bridge deck maintenance, rehabilitation, and replacement, the Utah Department of Transportation (UDOT) initiated this research to
Nondestructive Evaluation of Concrete Infrastructure with Ground Penetrating Radar
In recent years the use of ground penetrating radar (GPR) at frequencies from 500 MHz to 2.5 GHz has yielded very good results for inspection of concrete structures. The possibility of performing
Corrosion degradation and repair of a concrete bridge
Reinforced concrete corrosion has been widely reported in the literature over the last two to three decades even though certain cement concrete works remain in excellent state after more than one
EVALUATING THE PERES GROUND PENETRATING RADAR SYSTEM FOR BRIDGE DECK INSPECTION USING IMAGE PROCESSING AND PATTERN RECOGNITION DATA ANALYSIS
There are currently 367,950 bridges in service in the United States that incorporate concrete bridge decks into their design. The deterioration of these concrete decks can be more rapid than any
The Testing of Concrete in Structures
The principal aim of this book is to provide non-specialist engineers responsible for the planning of test programmes with an overview of the subject, to guide them in their planning, and to advise
Principles of Thermography and Radar for Bridge Deck Assessment
Traditional methods of bridge deck condition assessment are slow, labor‐intensive, intrusive to traffic, and unreliable. Two new technologies, radar and infrared thermography, which have recently
...
1
2
3
...