The report describes work carried out in the 2006-2007 financial year. Specimens of typical road aggregates were photographed, using a linescan camera system, before and after artificial polishing. Images the aggregates in the different states of polish were examine automatically, by developing bespoke software, to assess if a change in the microtexture could be detected and linked to the measured change in friction on the specimen surface. The method for analysis, including masking of the image to isolate aggregate surface, and algorithms that examine changes in image intensity, are briefly described. The correlation between parameters determined from image analysis and friction measurements on the specimens is presented.

LOKASI: Rak Penelitian 2