Abstract
Until now, crack property of concrete structure due to AAR have been estimated by means of number of cracks, crack width measured by a traverse method or an area method. However, the shape and the progress of crack, and the distribution are vaguely expressed and can't be quantified. This study applied a fractal analysis method to quantify the crack properties of concrete due to AAR. Condition of analysis, fractal characteristic value and appearance of crack were discussed. The damage degree due to AAR was quantitatively estimated. Both results of the analysis and the investigation on concrete structures were compared. The point of time of repairing the concrete structure was examined.
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