Keywords and Phrases
Bridge deck assessment; Ground penetrating radar (GPR); Hammer sounding and chain drag; Portable seismic property analyzer (PSPA); Ultrasonic surface wave (USW); Using non-destructive techniques for bridge deck assessment
"Integrated non-destructive techniques were utilized to assess the condition of a reinforced concrete bridge deck. There were two main objectives accomplished.
The first objective was to assess the integrity of the reinforced concrete bridge deck using four non-destructive techniques, namely visual inspection, ground penetrating radar, portable seismic property analyzer-ultrasonic surface wave, and hammer sounding and chain drag. Visual inspection data were used to identify signs of deterioration on surface of the bridge deck such as cracking, concrete leaching, and reinforcement corrosion. Ground penetrating radar data were used to determine the relative condition of the bridge deck. However, due to the significant differences in depth of the embedded reinforcements, ground penetrating radar data were not useful in terms of assessing the overall condition of the bridge deck. Portable seismic property analyzer-ultrasonic surface wave data were used to determine the concrete quality of the bridge deck by estimating averag Young's modulus (elastic modulus). Hammer sounding and chain drag data were used to identify non-delaminated and severe delaminated areas in the bridge deck.
The second objective was to demonstrate the effect of temperature and moisture content changes on ground penetrating radar signal amplitude. Ground penetrating radar signal amplitude variations associated with different weather condition of temperature and moisture changes were evaluated. Ground penetrating radar signal amplitude was increasingly attenuated during low temperature and high moisture content. In contrast, ground penetrating radar signal amplitude was decreasingly attenuated during high temperature low moisture content"--Abstract, page iii.
Anderson, Neil L. (Neil Lennart), 1954-
Torgashov, Evgeniy V.
Rogers, J. David
Geosciences and Geological and Petroleum Engineering
M.S. in Geological Engineering
Missouri University of Science and Technology
xii, 63 pages
© 2018 Abdullah Hadi Zaid Alhaj, All rights reserved.
Thesis - Open Access
Electronic OCLC #
Alhaj, Abdullah Hadi Zaid, "Bridge deck assessment using visual inspection, ground penetrating radar, portable seismic property analyzer-ultrasonic surface wave, hammer sounding and chain drag" (2018). Masters Theses. 7817.