Concrete Bridge Deck Assessment: Relationship between GPR Data and Concrete Removal Depth Measurements Collected after Hydrodemolition

Abstract

A ground-coupled ground penetrating radar (GPR) system was used to assess the condition of two reinforced concrete bridge decks. After each GPR assessment was completed, the bridge deck was rehabilitated using a hydrodemolition process to remove deteriorated concrete from upper surface of the deck. LiDAR technology was used to create maps depicting the deck surface before and after the concrete removal. The objective of this work was to corroborate the GPR condition assessments by comparing the spatial distribution of the GPR and LiDAR mappings. This work illustrates that GPR data have the potential to predict concrete repair estimates.

Department(s)

Civil, Architectural and Environmental Engineering

Second Department

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

Bridge deck; Ground penetrating radar; Hydrodemolition; LiDAR; Repair estimates; Concrete bridges; Concretes; Geological surveys; Optical radar; Reinforced concrete

International Standard Serial Number (ISSN)

0950-0618

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Elsevier Ltd, All rights reserved.

Publication Date

01 Nov 2015

Link to Full Text

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