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• W2133998420 abstract "Friction coefficient is widely used to measure slipperiness. It is also known that surface roughness affects friction. Surface roughness on quarry tiles was systematically varied by sand blasting. The relationship among slip resistance, tile surface roughness, surface conditions and slipmeters used was investigated. The results indicated that the effect of surface roughness on friction index depends on the slipmeter used, due to the different characteristics among these slipmeters. It was also shown that tile surface roughness could be correlated with the measured friction index. For dry surfaces, surface parameters Ra and R3z (see Table 1Table 1. The definitions of surface parametersR3y – the maximum height of the third highest peak to the third lowest valley in each cut-off lengthR3z – the mean height from the third highest peak to the third lowest valley in each cut-off lengthRa – the arithmetical average of surface heights, also known as the center line average of surface heights (CLA)Rk – the kernel roughness depthRku – the kurtosis of surface heightsRp – the maximum height of the profile above the mean line within the assessed lengthRpk – the reduced peak heightRpm – the average of the maximum height above the mean line in each cut-off lengthRq – the root-mean square of surface heightsRsk – the skewness of surface heightsRt – the maximum peak-to-valley height in the assessed lengthRtm – the average of peak-to-valley height in each cut-off lengthRv – the maximum depth of the profile below the mean line within the assessed lengthRvk – the reduced trough depthRy – the maximum of peak to valley in all cut-off lengthsRz – the average height difference between five highest peaks and five lowest valleys within the assessed lengthS – the mean spacing of adjacent local peaksSm – the mean spacing between profile peaks at the mean lineλq – the root-mean-square measure of spatial wavelengthΔa – the arithmetical mean of surface slopeΔq – the root-mean square of surface slope for definitions) had the highest correlation with the measured friction indices among 21 surface parameters evaluated in the study. Surface parameters Rpk and Rpm had the highest correlation with the measured friction indices for wet surfaces. A rougher surface generally led to a higher friction index. For wet surfaces, moreover, sharper and higher peaks with an optimal high peak density on tile surfaces could increase friction index further. Table 1. The definitions of surface parameters Relevance to industry Slips and falls are a serious problem in occupational injuries. A higher slip resistance could potentially reduce the number of falls. This study could help identify the surface features that could increase the slip resistance of a floor." @default.
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• W2133998420 date "1999-06-01" @default.
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• W2133998420 title "The effect of surface roughness on the measurement of slip resistance" @default.
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• W2133998420 doi "https://doi.org/10.1016/s0169-8141(98)00038-9" @default.
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