Linear Array Ultrasonic Test Results from Alkali-Silica Reaction (ASR) Specimens

This report presents results of the ultrasound evaluation of four concrete slabs with varying levels of ASR damage present. This included an investigation of the experimental results, as well as a supplemental simulation considering the effect of ASR damage by elasto-dynamic wave propagation using a finite integration technique method. It was found that the Hilbert Transform Indicator (HTI), developed for quantification of freeze thaw damage in concrete structures, could also be successfully utilized for quantification of ASR damage.