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The backbone of modern infrastructure is concrete, yet modern ultrasonic characterization techniques often fail to be accurate and repeatable. Recent advances in low frequency ultrasonic array hardware have generated a new potential for improved material and structural characterization of concrete. However, the analysis and interpretation associated with the new array based hardware is more difficult...
Concrete is the most widely used material to construct critical large infrastructure systems such as dams, bridges and nuclear power plants. These concrete structures are generally subjected to various degradation mechanisms including alkali-silica reaction (ASR), freezing-thawing cycles and steel bar corrosion during their service life. Prolonged and repeated exposure to these mechanisms can result...
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