@article{article_285917, title={Slip Safety Risk Analysis of Surface Properties by Determining Coefficients of Friction (COF) of Natural Stones}, journal={Cumhuriyet Üniversitesi Fen Edebiyat Fakültesi Fen Bilimleri Dergisi}, volume={38}, pages={219–233}, year={2017}, DOI={10.17776/cumuscij.285917}, author={Çoşkun, Gültekin and Sarıışık, Gencay}, keywords={Natural stones,Ramp test,Pendulum test,Coefficient of friction,Floor surface}, abstract={<p class="MsoNormal" style="margin-right:-5.4pt;text-align:justify;"> <span lang="en-us" style="font-size:10pt;line-height:115%;font-family:’Times New Roman’, serif;" xml:lang="en-us">The present work attempts to determine the most suitable surface processing techniques and environment conditions to reduce the slipping risk of pedestrians while walking barefoot and wearing shoes on natural stone floor coverings. In this study, coefficients of friction (COF) of surface-processed natural stones with three different methods were determined by using DIN EN 51097, DIN EN 51130 and TS EN 14231 standards. Coefficients of friction (COF) have been determined by using ramp test equipment and a pendulum method on 15 different types of dimensioned-classified rocks applied with polishing, honing, patinated and tumbling surface processing techniques. It was found that the parameters that affected COF values of the natural stones were environment conditions (wet, dry and lubricated) and the applied surface processing techniques. The natural stones were then grouped according to places for safe utilization depending on COF values and surface roughness, according to the statistical results. </span> </p> <p> </p>}, number={2}, publisher={Sivas Cumhuriyet University}