The aim of this ring analysis was to study the relations between three Nordic road simulators and to produce a proposal for a common test method. The results were reported as relative SPSp values (specific wear when tested in a road simulator) according to an original proposal for a CEN method. Equivalent results are obtained in the Norwegian and Swedish road simulators. The results of the Finnish road simulator differ slightly from the results of the two other road simulators. Alternatively, the result was reported with the RWI (Relative Wear Index). An evaluation of the result according to the RWI offers better conformity between simulators. Concrete pavements with high compressive strength and porphyry aggregates had the best wear resistance. Generally, concrete pavements with a maximum aggregate size of 16 mm had better wear resistance than the corresponding concrete pavements with 8 mm aggregate. Based on this study, an alternative proposal was drawn up to produce a test method for the wear resistance of concrete pavements. This proposal can be used as a basis when producing a revised CEN method. (A) For the Swedish version see C 8062 S.
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