Research Article
Jan 1982
CW Microwave Location of Voids Beneath Paved Areas
Authors: Robert M. Koerner, M.ASCE, Arthur E. Lord Jr., John J. Bowders Jr., and William W. DoughertyAuthor Affiliations
Publication: Journal of the Geotechnical Engineering Division
Volume 108, Issue 1
Abstract
The problem of locating voids beneath paved areas is a perplexing and costly one. Usually voids are investigated by test borings, which is a discontinuous hit-or-miss process. The use of a continuous nondestructive testing method is a very attractive alternative. One such method is based upon the use of continuous wave (CW) microwaves which can penetrate the upper paved material and, depending upon the nature of the underlying material (soil, air or water), will give different return reflections. Such a method is described and results based on large scale laboratory tests are presented. It is concluded that the method could be used to indicate differences between the underlying material (soil, air or water), but fell short of assessing the thickness of the air void when it was present.
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Published In
Journal of the Geotechnical Engineering Division
Volume 108 • Issue 1 • January 1982
Pages: 133 - 144
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Jan 1982
Published online: Feb 11, 2021
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Authors
Affiliations
Robert M. Koerner, M.ASCE
Prof. of Civ. Engrg., Drexel Univ., Philadelphia, Pa. 19104
Arthur E. Lord Jr.
Prof. of Physics, Drexel Univ., Philadelphia, Pa. 19104
John J. Bowders Jr.
Grad. Research Asst., Drexel Univ., Philadelphia, Pa. 19104
William W. Dougherty
Stone and Webster, Cherry Hill, N.J.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.