2016 Volume 72 Issue 4 Pages 380-399
In the maintenance of concrete structures whose degradation is produced by abrasion, it is necessary to predict an amount of abrasion quantitatively. Currently, however, the prediction method is not established. In this study, we examined effects of external force and factors of concrete quality (e.g. weight, speed, the number of blow, compressive strength) on the amount of abrasion using the shock abrasion examination device with the steel boll falling on a concrete surface. Based on the regression analysis of huge amount of experimental data, we developed the prediction method of abrasion depth development of concrete. The method was validated by applying the method to the abrasion of actual concrete structures.
