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Impact Abrasion Of Hydraulic Structures Concrete, Yu-Wen Liu, Shi-Wei Cho, Tsao-Hua Hsu

Journal of Marine Science and Technology

Most of the abrasion damage is caused by the action of water-borne particles (silt, sand, gravel, and other solid) impacting and rolling against the concrete surface during hydraulic structure operation. In this paper solid-particle abrasion of concrete containing slag was studied. Experiments included use of river sand abrade of mean diameter ~ 0.6, 1.2, 2.5 and 5 mm, and sand content was 110, 230 and 340 kg per 1 m3 of water, impacting at 30°, 45° and 90° to the concrete surface. And the waterborne sand flow impact test method was used. Test results show that the abrasion rate to …