Specimens of typical road aggregates were photographed, using a line scan camera system, before and after artificial polishing. Images of the aggregates in the different states of polish were examined 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 surfaces, and the 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.
The similarity algorithm calculates how much two contents in the system are similar to one another. So far, similarity is calculated based on similarity of the project type, area of interest and user type. Generally, if two contents have more parameters in common they are more similar to each another. More information.
On behalf of the Swedish Institute for Transport and Communications Analysis (SIKA) the effect on tr ...
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