Mathematical model of abrasive wear of high performance concrete

This paper presents a mathematical model for kinetics of abrasive wear of concrete. The underwater method ASTM C1138 was used to test the abrasive wear. The paper includes the results for high performance concrete (HPC) and a description of water/cement ratio (w/c) influence on the abrasive wear of HPC under constant load. The influence of load on a concrete wear through the variation of speed of the abrasive mixture was taken into account also. Tests results allowed the calculation of constants and determination of the characteristics of HPC wear. The formulated mathematical model of concrete wear allows forecasting of the concrete wear when the velocity of the river rumble is known. This model matched the test results quite well.