BS EN 12697-49. Bituminous mixtures. Test methods. Part 49. Determination of friction after polishing
93.080.20 - Road construction materials
This document describes a test method to determine the friction at 60 km/h after polishing during a fixed number of passes on surfaces of bituminous mixtures samples, or to follow its evolution as a function of the number of polishing passes.
The samples used are either produced in a laboratory or are cores taken from the site.
This procedure was previously known as Wehner and Schulze method (see ).
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