NONDESTRUCTIVE METHODS FOR CONDITION EVALUATION OF PRESTRESSING STEEL STRANDS IN CONCRETE BRIDGES. FINAL REPORT PHASE I: TECHNOLOGY REVIEW

1999 
This report contains the findings of a study performed to determine whether a practical and economical method for quantitative nondestructive condition evaluation of bonded prestressing systems in highway bridges exists. The report provides a comprehensive summary of a global technology review made to identify NDT methods developed in the time period commencing in 1990. The noted NDT advances of the decade, which possessed some potential for assessing strand condition, were characterized and evaluated based on technical, accuracy, operational, logistical, safety, and other factors. The contents of this report will be of interest to bridge maintenance engineers, researchers, and others concerned with assessing the condition of concrete bridges and the degree of strength and serviceability impairment created by deteriorating prestressing systems.
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