Avşar, E. ÖzgürBozkurtoğlu, ErkanAydar, UmutŞeker, Dursun ZaferKaya, ŞinasiGazioğlu, Cem2025-05-292025-05-2920162148-9173https://doi.org/10.30897/ijegeo.306482https://hdl.handle.net/20.500.12428/30897In this study, a limestone rock core specimen with 6.94 cm x 4.95 cm dimensions was exposed to tensile force by Brazilian test and rough surfaces were obtained. Following the Brazilian test, roughness angles were measured by a laser scanner along one side of the rock specimen. For this purpose, Nextengine 3D Desktop scanner was used. The 17 profiles were studied along the width of the core with a 0.3 mm interval. Approximately 10000 points produced for each profile, some of them are in the “+” and some are in the “-” direction along each profile. Maximum and minimum roughness angles are calculated as 65.580 and 1.56x10-5 degree respectively. The average roughness angle value of the profiles is 13.870. The percentage of the roughness angle between 13 and 14 degrees were 2.65% and 2.70% for “-” and “+” directions on the rock surface, respectively. Mathematical analyses of 17 profiles showed that roughness profiles can be expressed by 21st – 30th degree polynomial equations with approximately 10-4 degree standard deviation.eninfo:eu-repo/semantics/openAccessRoughness anglelimestoneimage processingResearch Article33577510.30897/ijegeo.306482