A Portable, Nondestructive Evaluation System

Abstract

This project was a cooperative effort between the U.S. Army Engineer Waterways Experiment Station (WES) and the University of Illinois under a Cooperative Research and Development Agreement as part of the Construction Productivity Advancement Research Program. The purpose was to develop a portable radar system for nondestructive evaluation (NDE) of concrete. Two approaches, a time-domain pulse system and a frequency-domain system, were investigated. An ultra-wideband (UWB) time-domain pulse radar NDE system was developed at the University of Illinois and field tested at WES. The UWB time-domain impulse radar system successfully demonstrated the capability of detecting small reinforcement bars embedded in large concrete blocks. This report describes the development of the UWB time-domain NDE system in detail and illustrates several experimental results.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1998
Accession Number
ADA351741

Entities

People

  • A. M. Alexander
  • Fu-chiarng Chen
  • Weng C. Chew

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Army Corps Of Engineers
  • Computers
  • Concrete
  • Construction
  • Data Acquisition
  • Engineering
  • Engineers
  • Frequency
  • Frequency Domain
  • Illinois
  • Inverse Scattering
  • Radar
  • Repetition Rate
  • Scattering
  • Synthetic Aperture Radar
  • Test And Evaluation
  • Two Dimensional

Readers

  • Pavement Materials Engineering.
  • Radar Systems Engineering.
  • Structural Health Monitoring of Composite Structures.