Differences in the surface texture of aggregate particles determined by 3D model derived from optic microscope measurements

• Main Authors: Jozef Komačka, Zuzana Florková, Juraj Mužík
• Format: Article
• Language: English
• Published: Univerzity of Zilina. Faculty of Mechanical Engineering 2015-12-01
• Series: Materiálové Inžinierstvo
• Subjects: surface, texture, aggregate, 3D model, microscope
• Online Access: http://ojs.mateng.sk/index.php/Mateng/article/view/184
• ISSN: 1335-0803; 1338-6174

The surface texture of aggregate particles was investigated based on the 3D model of surface generated from the measurements by optic microscope. New software MicroSYS was developed to determine the wrapping plane of 3D model of aggregate using the function called “Thin plate spline“. New parameter for evaluation of surface texture of aggregate particle was proposed as the volumetric difference between two planes (wrapping plane and aggregate surface). Applicability of this parameters was tested on two aggregate fractions (4/8 and 8/11) coming form 11 quarries in Slovakia. The tested aggregates differed from petrography point of view and ranged from soft to hard. The difference among the quarries and also between fractions of aggregate was found out. The better surface texture was observed for the finner fraction of aggregate. Simultaneously, the better results were determined in the case of aggregate produced from the ingeous intrusive or extrusive rocks comparing to the sedimentary carbonate rocks aggregate.