Comprehensive condition assessment of bridge decks by multimodal NDE

Gucunski, Nenad; Feldmann, Ruediger; Romero, Francisco A.; Kruschwitz, Sabine; Parvardeh, Hooman

doi:10.1117/12.848704

Cited by 7 publications

(15 citation statements)

References 2 publications

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“…The results varied from study to study. Some studies found good correlation between the NDT methods being tested (Gucunski et al, 2010;Oh et al, 2013), while other studies found that the results from the different methods varied significantly (Donnelly et al, 2012;Scott et al, 2002), which of course shows that no one method is perfect in every application. The findings from these studies collectively suggest that using multiple NDTs is a better approach to correctly characterize the deterioration in the deck.…”

Section: Benefits Of Using Complementary Nondestructive Testing Methodsmentioning

confidence: 99%

“…Although past studies investigated using HCP on epoxy-coated rebar, it is still recommended that its use should be limited to uncoated rebar. Cover, moisture, temperature, and chloride ion concentrations can all affect the results (Gucunski et al, 2010).…”

Section: Appendices Appendix A: Literature Review Of Ndt Methodsmentioning

confidence: 99%

“…It should be noted that GPR detects delaminations not directly but by identifying finding corrosion by-products (Donnelly et al, 2012). The analyst calibrates the data from a known standard, such as ground truths or the evaluator's experience (Gucunski, Feldmann, Romero, Kruschwitz, & Parvardeh, 2010). Bare decks and decks overlaid with concrete or asphalt can be inspected using GPR (ASTM C1218, 2008.…”

Section: Ground-penetrating Radarmentioning

confidence: 99%

“…One study found that the difference in the quality and accuracy of the data was noticeable but small as the deterioration quantities were found to only have a 4% difference (Maser, Guarino, & Martino, 2014). Moisture and chlorides from deicing salts can affect the readings significantly (Gucunski et al, 2010); therefore, data collection is not recommended during the winter months (Gucunski et al, 2013). Lane closures are required for ground-coupled GPR.…”

Section: Ground-penetrating Radarmentioning

confidence: 99%

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The Economic Impact of Implementing Nondestructive Testing of Reinforced Concrete Bridge Decks in Indiana

Taylor¹,

Qiao²,

Bowman³

et al. 2017

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Partridge. We also thank Mr. Jeremy Hunter, who provided information about INDOT's bridge maintenance program and shared his vision for INDOT's NDT program. Finally, we sincerely appreciate the valuable contributions of the consultants, manufacturers, and vendors who shared their vast knowledge and experience in NDT testing. JOINT TRANSPORTATION RESEARCH PROGRAMThe Joint Transportation Research Program serves as a vehicle for INDOT collaboration with higher education institutions and industry in Indiana to facilitate innovation that results in continuous improvement in the planning, design, construction, operation, management and economic efficiency of the Indiana transportation infrastructure. Type of Report and Period CoveredFinal Report Sponsoring Agency Code Supplementary NotesPrepared in cooperation with the Indiana Department of Transportation and Federal Highway Administration. AbstractThe deck is among the most expensive components of a bridge over its lifetime because of the frequent and costly maintenance and rehabilitation required. Currently, the Indiana Department of Transportation (INDOT) performs visual inspections of a bridge deck as the principal means of determining its condition, which enables the inspector to definitively document the surface condition while the unseen condition below the deck surface is left to the inspector's expert judgement. To compensate for this lack of data, INDOT supplements visual inspections with programmatic scheduling for major work actions, which is very effective for INDOT but costly. In this continuing era of funding shortfalls, INDOT commissioned this study to investigate nondestructive testing (NDT) methods to fill their data gap to inform its work action decision. The NDT methods have been shown to accurately locate corrosion and delamination and are a cost-effective alternative. A project level comparison between the NDT methods was performed to show which method, as well as which combination of methods, were the best choices from a cost perspective. A project level analysis of 30 bridge decks was performed, and those costs were compared to the costs of the current INDOT programmatic schedules. Finally, the analysis was expanded to the network level, which included the entire bridge inventory in Indiana. The results of this study indicate that implementing the NDT methods is cost-effective for INDOT at both the project and network levels.

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Section: Benefits Of Using Complementary Nondestructive Testing Methodsmentioning

confidence: 99%

Section: Appendices Appendix A: Literature Review Of Ndt Methodsmentioning

confidence: 99%

Section: Ground-penetrating Radarmentioning

confidence: 99%

Section: Ground-penetrating Radarmentioning

confidence: 99%

See 2 more Smart Citations

The Economic Impact of Implementing Nondestructive Testing of Reinforced Concrete Bridge Decks in Indiana

Taylor¹,

Qiao²,

Bowman³

et al. 2017

View full text Add to dashboard Cite

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“…Therefore, this SAGEEP 2013 Denver, Colorado USA http://www.eegs.org reduction in the reflected amplitude at the reinforcement is often used more qualitatively as an indicator for the health of the bridge deck. Many researchers and practitioners endeavor to interpret GPR data to gain an understanding of the deterioration of the bridge decks (Gucunski et al, 2010;Amos, 2009) and even the presence of rust on the reinforcement using experimental GPR data Martino et al, 2012). One key aspect is to relate the electromagnetic properties of concrete in various states of deterioration or corrosion to deteriorated conditions.…”

Section: Sageep 2013mentioning

confidence: 98%

Simulated GPR Investigation of Deterioration in Reinforced Concrete Bridge Decks

Belli

Birken

Vilbig

et al. 2013

Symposium on the Application of Geophysics to Engineering and Environmental Problems 2013

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The objective of this paper is to use advanced modeling capabilities to represent different cracking schemes around reinforcement steel and chloride-graded concrete to determine potential relationships between measured GPR signals and attenuation, and potential deterioration states of bridge decks.The American Society of Civil Engineers determined that, in 2009, more than 26% of bridges in the United States were structurally deficient or functionally obsolete, and that there is a significant cost associated with maintaining the current level of deficient bridges (roughly $13 billion a year, according to AASHTO). Non-destructive testing, such as ground penetrating radar (GPR) surveys, can help to determine the condition of bridges. These investigations have a significant advantage over traditional visual inspection in that the condition of the subsurface can be inferred before damage has progressed to the point of being visible at the surface. This information can be extremely valuable in the scheduling and allocation of resources for repair and rehabilitation.The examination of the data from GPR surveys reveals significant attenuation of the signal scattered from the rebar in areas of concrete contamination and rebar corrosion. However, it is unclear if this attenuation is due to geometric changes in the bridge deck, such as cracking and debonding around the corroding rebar, changes to the electromagnetic properties of the surrounding concrete, e.g. due to chloride infiltration, or a combination of the two. Using finite difference time domain modeling of electromagnetic wave scattering the contribution of these factors is considered to obtain signal attenuation matching results observed in the field. It was found that the attenuation of the signal due to severe cracking does not govern over the variation of moistures and chlorides (or permittivity and conductivity) throughout the bridge deck.Downloaded 06/28/16 to 128.210.126.199. Redistribution subject to SEG license or copyright; see Terms of Use at http://library.seg.org/

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First Application of UHPC Bridge Deck Overlay in North America

Sritharan

Doiron

Bierwagen³

et al. 2018

Transportation Research Record: Journal of the Transportation R

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Deterioration of existing bridge decks, which usually originates with the deck cracking on the top surface, is a common problem in North America. It causes frequent repair of the decks to limit further damage resulting from water/chloride ingress. Superior engineering and durability properties facilitate the use of ultra-high performance concrete (UHPC) as an attractive alternative for a deck overlay, minimizing both deck deterioration and maintenance costs. Recently developed UHPC thixotropic mix designs, which are different from commonly used self-leveling UHPC, enable UHPC overlay to be used on decks with slopes and meet specific crowning requirements. The use of a UHPC thixotropic mix design with 3.25% of steel fibers was successfully evaluated under laboratory conditions by applying it on sloping deck surfaces with appropriate roughness between the normal concrete (NC) and UHPC. The feasibility of applying this technology in the field was then investigated on a small bridge for the first time in North America in May 2016. This paper presents the details about the laboratory evaluation, field implementation of UHPC overlay, and lessons learned from this first UHPC overlay project in North America.

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Comprehensive condition assessment of bridge decks by multimodal NDE

Cited by 7 publications

References 2 publications

The Economic Impact of Implementing Nondestructive Testing of Reinforced Concrete Bridge Decks in Indiana

The Economic Impact of Implementing Nondestructive Testing of Reinforced Concrete Bridge Decks in Indiana

Simulated GPR Investigation of Deterioration in Reinforced Concrete Bridge Decks

First Application of UHPC Bridge Deck Overlay in North America

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