United States Department of Transportation
Damage detection techniques for concrete applications.
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2016-08-01
File Language:
English
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Abstract:New technological advances in nondestructive testing technology have created the opportunity to better utilize ultrasonic waves to aid in damage detection applications for concrete. This research utilizes an ultrasonic array device for nondestructive damage detection purposes. The ultrasonic shear velocity array system used for this research is particularly advantageous because it can obtain measurements on virtually any concrete specimen, from columns and beams to concrete pavements, and provides a wealth of data from a single measurement. Novel signal interpretation methods were developed for several important concrete applications. ; Detection of load-induced damage in a full-scale reinforced concrete column, as well as standard life-cycle damage in concrete pavements caused by freeze thaw or alkali-silica reaction degradation were considered. In addition, cracking in continuously reinforced concrete pavements was considered. These investigations culminated in the development of successful and efficient quantitative damage detection methods.
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Main Document Checksum:urn:sha-512:47fa56f068ffac96e42b9489186fac11a0e70881cb7383d0681c19061e2b0727cc1a2859b8ea79a3eb78eea6e65fe70b10d31de31041496b9e1bcfc6480c5d73
File Language:
English
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