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Proceedings Paper

X-ray diffraction measurement of stresses in post-tensioning tendons
Author(s): Michael G. Carfagno; Faired S. Noorai; Michael E. Brauss; James A. Pineault
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Paper Abstract

As part of an ongoing inspection and maintenance program for the prestressed, post-tensioned concrete runway extension decks at La Guardia Airport, a state-of-the-art method known as x-ray diffraction was utilized to non-destructively measure stresses in existing post-tensioning tendons. A review of the theory of x-ray diffraction stress measurement is given and a case study of the first known application of x-ray diffraction stress measurement to in-situ post- tensioning as undertaken by the Port Authority at La Guardia Airport is presented.

Paper Details

Date Published: 13 November 1996
PDF: 6 pages
Proc. SPIE 2946, Nondestructive Evaluation of Bridges and Highways, (13 November 1996); doi: 10.1117/12.259152
Show Author Affiliations
Michael G. Carfagno, Port Authority of New York and New Jersey (United States)
Faired S. Noorai, Port Authority of New York and New Jersey (United States)
Michael E. Brauss, Proto Manufacturing Ltd. (Canada)
James A. Pineault, Proto Manufacturing Ltd. (Canada)


Published in SPIE Proceedings Vol. 2946:
Nondestructive Evaluation of Bridges and Highways
Steven B. Chase, Editor(s)

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