Nondestructive Evaluation of MoDOT Bridge Decks. N Phase 2

Nondestructive Evaluation of MoDOT Bridge Decks. N Phase 2
Author: Lesley Sneed
Publisher:
Total Pages: 356
Release: 2014
Genre: Concrete bridges
ISBN:

This research has examined the use of nondestructive techniques for concrete bridge deck condition assessments. The primary nondestructive testing/evaluation (NDT/NDE) technique utilized in this research was ground-coupled ground penetrating radar (GPR). The objectives of this research were to examine the utility of the nondestructive techniques in evaluating the condition of MoDOT bridge decks to enable faster, better, and more cost-effective bridge deck assessments, and to determine the accuracy of the information provided.

Nondestructive Testing to Identify Concrete Bridge Deck Deterioration

Nondestructive Testing to Identify Concrete Bridge Deck Deterioration
Author:
Publisher: Transportation Research Board
Total Pages: 96
Release: 2013
Genre: Technology & Engineering
ISBN: 0309129338

" TRB's second Strategic Highway Research Program (SHRP 2) Report S2-R06A-RR-1: Nondestructive Testing to Identify Concrete Bridge Deck Deterioration identifies nondestructive testing technologies for detecting and characterizing common forms of deterioration in concrete bridge decks.The report also documents the validation of promising technologies, and grades and ranks the technologies based on results of the validations.The main product of this project will be an electronic repository for practitioners, known as the NDToolbox, which will provide information regarding recommended technologies for the detection of a particular deterioration. " -- publisher's description.

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
Author: Benjamin Taylor
Publisher:
Total Pages:
Release: 2016-12-31
Genre:
ISBN: 9781622604357

The 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.

Nondestructive Evaluation of Bridge Decks

Nondestructive Evaluation of Bridge Decks
Author: Bernard H. Hertlein
Publisher: CRC Press
Total Pages: 256
Release: 2016-07-01
Genre: Technology & Engineering
ISBN: 9780415781541

This comprehensive reference details the core test methods for the nondestructive evaluation of bridge decks and overlays, and gives a balanced comment on their strengths and limitations. It covers visual, acoustic, low strain, electro-chemical, and invasive methods, and also looks at novel and emerging methods as wll as the general question of quality control. It also gives guidance on which test methods to specify for various site conditions or needs and on adherence to internationally recognized norms or standards where these exist.

Evaluation of Bridge Decks Using Non-destructive Evaluation (NDE) at Near Highway Speeds for Effective Asset Management -- Pilot Project

Evaluation of Bridge Decks Using Non-destructive Evaluation (NDE) at Near Highway Speeds for Effective Asset Management -- Pilot Project
Author: Theresa M. Ahlborn
Publisher:
Total Pages: 86
Release: 2016
Genre: Bridges
ISBN:

This project piloted the findings from an initial research and development project pertaining to the detection, quantification, and visualization of bridge deck distresses through the use of remote sensing techniques, specifically combining optical and thermal imagery, and expanded by increasing the rate of data collection to near-highway speed (speeds of at least 45 mph). Specifically, six large deck bridges (>90,000 sf) were assessed, without closing lanes to traffic, and are presented. Top deck concrete surfaces were evaluated for spalls and delaminations, and were recapped in map-based and table-based element level summaries with percentage and area by condition state and by span. Personnel and computing times were documented, and costs were estimated for a similar future bridge deck condition assessment for a large deck bridge. Additionally, this pilot project conducted a 3-D Optical Bridge-evaluation System (3DOBS) accuracy assessment, and provided training and demonstration sessions to help MDOT personnel understand and implement these technologies. By identifying element level condition states of concrete decks through innovative methods of data collection and advanced data processing, implementation of these combined remote sensing technologies has the potential to become a standard MDOT business practice.