Author :
Abstract
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In this study, the effect of abrasion resistance and fineness modulus of the fine aggregates in the concrete mixture was investigated to determine the friction coefficient loss. Nine different concrete mixtures were obtained by using three different gradations and fine aggregates with three different Los Angeles (LA) wear resistance. A new accelerated polishing test method was conducted in a laboratory. In the new method, unlike other wheel polishing methods, a constant horizontal friction force was formed alongside the vertical pressure of the wheel contact area. The wet friction coefficients of the concrete surfaces were measured by the British Friction Pendulum. Test results showed that the most friction loss occurred in the fine aggregated concrete mixtures obtained from limestone with the lowest wear resistance, while the least loss values were obtained for basalt with high abrasion resistance. |
Keywords
Abstract
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In this study, the effect of abrasion resistance and fineness modulus of the fine aggregates in the concrete mixture was investigated to determine the friction coefficient loss. Nine different concrete mixtures were obtained by using three different gradations and fine aggregates with three different Los Angeles (LA) wear resistance. A new accelerated polishing test method was conducted in a laboratory. In the new method, unlike other wheel polishing methods, a constant horizontal friction force was formed alongside the vertical pressure of the wheel contact area. The wet friction coefficients of the concrete surfaces were measured by the British Friction Pendulum. Test results showed that the most friction loss occurred in the fine aggregated concrete mixtures obtained from limestone with the lowest wear resistance, while the least loss values were obtained for basalt with high abrasion resistance. |
Keywords
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