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<p>Created page with &quot; == Abstract == Friction of pavement surfaces and skid resistance are major functional requirements which have to be fulfilled&lt;br&gt; over the service time of pavements. The ski...&quot;</p> <p><b>New page</b></p><div><br /> == Abstract ==<br /> <br /> Friction of pavement surfaces and skid resistance are major functional requirements which have to be fulfilled&lt;br&gt; over the service time of pavements. The skid resistance in situ on a pavement surface is measured by non&lt;br&gt; destructive continuous measurement systems at traffic speed like SKM in Germany. To determine decisive&lt;br&gt; performance characteristics it is necessary to develop test methods which simulate the in-situ performance&lt;br&gt; realistically. So the question arises how to predict pavement performance concerning skid resistance for type&lt;br&gt; testing in laboratory. In Germany the test system of the Wehner/Schulze machine offers the possibility to&lt;br&gt; determine the friction of aggregates as well as the friction of real asphalt samples in laboratory. It is furthermore&lt;br&gt; possible to submit the specimen to accumulated polishing procedures to evaluate the changes in friction due to&lt;br&gt; simulated loading of the surface. The aim is to use this test method to evaluate friction performance in laboratory&lt;br&gt; to predict the performance of skid resistance over the service life of a pavement in situ.&lt;br&gt; In Europe today the resistance to polishing is only described by the resistance of aggregates against polishing by&lt;br&gt; determining the polish stone value (EN 1097-8). The influence of bitumen and the grading curve of aggregates&lt;br&gt; used for the asphalt mixture are herewith not taken into account. By using the Wehner Schulze machine and the&lt;br&gt; use of asphalt specimen in the friction after polishing test (FAP, EN 12697-49) a first step was made to tie&lt;br&gt; aggregates performance up to pavement performance in situ. With the new testing machine of BASt FAP test are&lt;br&gt; able to perform in situ on test sites. So in future is will be possible to survey pavements’ friction performance&lt;br&gt; over the service life of a pavement. This enables a realistic correlation of pavement performance in situ to&lt;br&gt; laboratory trials with simulated loading by polishing the specimen.&lt;br&gt; With the test method Friction after Polishing a test method is available to evaluate the performance of asphalt&lt;br&gt; with regard to friction already in laboratory to design an asphalt mixture with resists reliable the loading in situ&lt;br&gt; over its service life.<br /> <br /> <br /> == Original document ==<br /> <br /> The different versions of the original document can be found in:<br /> <br /> * [https://zenodo.org/record/1456801 https://zenodo.org/record/1456801] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br /> <br /> * [http://dx.doi.org/10.5281/zenodo.1456801 http://dx.doi.org/10.5281/zenodo.1456801],<br /> : [https://zenodo.org/record/1456801 https://zenodo.org/record/1456801] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br /> <br /> * [https://zenodo.org/record/1456801 https://zenodo.org/record/1456801],<br /> : [http://dx.doi.org/10.5281/zenodo.1456800 http://dx.doi.org/10.5281/zenodo.1456800] under the license http://creativecommons.org/licenses/by-nc-nd/4.0/legalcode<br /> <br /> <br /> <br /> DOIS: 10.5281/zenodo.1456801 10.5281/zenodo.1456800</div>

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