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Title: Evaluation of subsurface damage in concrete deck joints using impact echo method

Many factors can affect the overall performance and longevity of highway bridges, including the integrity of their deck joints. This study focuses on the evaluation of subsurface damage in deteriorated concrete deck joints, which includes the delamination and corrosion of the reinforcement. Impact echo and surface wave technology, mainly a portable seismic property analyzer (PSPA), were employed to evaluate the structural deficiency of concrete joints. Laboratory tests of core samples were conducted to verify the nondestructive test results. As a result, the primary advantage of the PSPA as a bridge assessment tool lies in its ability to assess the concrete’s modulus and to detect subsurface defects at a particular point simultaneously.
Authors:
 [1] ;  [2]
  1. Sandia National Lab., Kansas City, MO (United States)
  2. Gachon Univ., Gyeonggi-do (Republic of Korea)
Publication Date:
OSTI Identifier:
1266839
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Advances in Materials Science and Engineering
Additional Journal Information:
Journal Volume: 2016; Journal ID: ISSN 1687-8434
Publisher:
Hindawi
Research Org:
Sandia National Lab. (SNL-CA), Livermore, CA (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING