COMPARISON THE CHARACHERISTICS OF AC 8 SURF AND AC 11 SURF AND RESULTS BETWEEN TREE LABORATORIES AT LOW TEMPERATURES

3rd International Conference on Road and Rail Infrastructure (CETRA 2014)

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Field Value
 
Title COMPARISON THE CHARACHERISTICS OF AC 8 SURF AND AC 11 SURF AND RESULTS BETWEEN TREE LABORATORIES AT LOW TEMPERATURES
 
Creator DEJAN HRIBAR; HEAD OF THE CENTRE FOR TRAFFIC ROUTES AND INFRASTRUCTURE
Marjan Tušar
Tomislav Šafran; HEAD OF LABORATORY
 
Subject asphalt concrete, bitumen, low temperatures, cracks
 
Description The first part of this paper presents comparison of the characteristics of asphalt concrete AC 8 surf and AC 11 surf, with bitumen B 50/70, at low temperatures. The second part shows the results of international comparison between three laboratories in EU, who carried out the Tensile Stress Restrained Specimen Test (TSRST) and Uniaxial Tensile Strength Test (UTST) in accordance with standard EN 12697-46. In the first part are presented results of the TSRST and UTST tests as a function of the asphalt mixture characteristic (bitumen content and voids filled with bitumen – VFB) and temperature. The analysis of the results has shown that there are certain differences, especially at the higher temperatures of the test. In the second part, it is shown that there are obvious differences in the results at TSRST and UTST test between compared laboratories. Based on these findings, we believe that it would be necessary to do more extensive inter-laboratory analysis to confirm this hypothesis and that there is need to update the standard EN 12697-46 in some points.
 
Publisher CETRA 2014
 
Contributor
 
Date 2017-02-28 16:44:27
 
Type Peer-reviewed Paper
 
Identifier http://master.grad.hr/cetra/ocs/index.php/cetra3/cetra2014/paper/view/385
 
Source CETRA 2014; 3rd International Conference on Road and Rail Infrastructure
 
Language en
 
Rights <p>Authors who submit to this conference agree to the following terms:<br /> <strong>a)</strong> Authors retain copyright over their work, while allowing the conference to place this unpublished work under a <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution License</a>, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference. <br /> <strong>b)</strong> Submitted full papers will be published in the book of proceedings "Road and Rail Infrastructure II" as well as in digital form (on a CD). Conference organiser is allowed to publish author's names, institution and country as well as the paper abstract on the conference web site.</p>
 

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