Abstract
This paper proposes an estimating method of the coarse aggregate volume used for self-compacting concrete. This method employs a probability model derived by the Monte-Carlo simulation, which regards the critical state of self-compactability as a bridge structure of the coarse aggregate covered with adherent mortar films. The probability model was compared to the published results of previous experiments for examination and validation of its applicability. The comparison clarified that the application of the model would enable to estimate the coarse aggregate volume for self-compacting concrete and facilitate its mix design.