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Title: Advanced ground-penetrating, imaging radar for bridge inspection

Inspecting high-value structures, like bridges and buildings using Ground Penetrating Radar (GPR) is an application of the technology that is growing in importance. In a typical inspection application, inspectors use GPR to locate structural components, like reinforcing bars embedded in concrete, to avoid weakening the structure while collecting core samples for detailed inspection. Advanced GPR, integrated with imaging technologies for use as an NDE tool, can provide the capability to locate and characterize construction flaws and wear- or age-induced damage in these structures without the need for destructive techniques like coring. In the following sections, we discuss an important inspection application, namely, concrete bridge deck inspection. We describe an advanced bridge deck inspection system concept and provide an overview of a program aimed at developing such a system. Examples of modeling, image reconstruction, and experimental results are presented.
Authors:
; ; ;  [1] ;  [2]
  1. Lawrence Livermore National Lab., CA (United States)
  2. California Univ., Santa Barbara, CA (United States). Dept. of Electrical and Computer Engineering
Publication Date:
OSTI Identifier:
10120066
Report Number(s):
UCRL-JC--113707; CONF-9308167--8
ON: DE94006051
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: 20. annual review of progress in quantitative nondestructive evaluation (NDE),Brunswick, ME (United States),1-6 Aug 1993; Other Information: PBD: Aug 1993
Research Org:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 47 OTHER INSTRUMENTATION; MECHANICAL STRUCTURES; NONDESTRUCTIVE TESTING; BRIDGES; INSPECTION; RADAR; CONCRETES; IMAGE PROCESSING 420200; 440800; FACILITIES, EQUIPMENT, AND TECHNIQUES; MISCELLANEOUS INSTRUMENTATION