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Abrasion erosion of concrete by water-borne sand |
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| Authors: | Yu-Wen Liu Tsong Yen |
| Affiliation: | a Department of Civil and Water Resources Engineering, National Chiayi University, Taiwan b Department of Civil Engineering, National Chung Hsing University, Taiwan c Concrete Test and Research Center, Taipower Company, Taiwan |
| Abstract: | Hydraulic concrete structures frequently experience long-term abrasive erosion by water-borne sand, resulting in surface damage and eventually limiting their service life. In this study, the investigation of abrasion erosion tests on concrete with various water to cementitious material ratios (w/cm) was performed. The effects of the constituent materials on concrete structure abrasion erosion resistance were studied. The test results show that: (1) reduction in the w/cm ratio increases the tested concrete abrasion resistance; (2) the splitting tensile strength is a viable indicator for concrete abrasion resistance; (3) high permeability concrete exhibits weak abrasion resistance; and (4) concrete and low strength concrete made with coarser aggregate exhibit greater abrasion resistance. |
| Keywords: | Abrasion erosion Splitting tensile strength Compressive strength Permeability |
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