عنوان مقاله [English]
The polished stone value test is a very useful test for measuring the micro-texture of different aggregates and evaluating their resistance to long term abrasion. The micro-texture of aggregates plays an important role in providing the frictional resistance of pavement, and by selecting suitable aggregates, the safety of roads can be improved significantly i.e. conducting this test alongside other tests on aggregates gives an insight to pavement engineer to select suitable aggregates stock according to project circumstances so that the skid resistance of final pavement can be guaranteed. In this paper, the method of PSV test, according to European standards, is explained and the relationship between the polished stone value and the results of other tests of aggregates is investigated. In addition, the polishing test was performed on several types of typical aggregates used in road construction from all over Iran. The results showed that majority of aggregates had a polished stone value higher than 30.