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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Utvärdering av gummiasfalt :provväg E22 Mönsterås : etapp 1</title>
      <link>https://trid.trb.org/View/1696268</link>
      <description><![CDATA[Laboratory and filed investigations have been carried out to evaluate the performance of rubber modified asphalt test road on E22 Mönsterås. The laboratory investigations indicated that there are no significant differences in stiffness and shear modulus between the reference and rubber modified mixtures. The rubber modified mixture however showed slightly lower phase angle compared to the reference mixture which indicate that the rubber modified mixture is more elastic. The rubber modified mixtures also showed lower modulus at lower temperatures and slightly higher modulus at higher temperature which are desired properties for resistance against low temperature cracking and permanent deformation respectively. The fatigue tests indicated that the rubber modified asphalt mixture has slightly better fatigue cracking performance. But the difference is not significant. The road surface profile measurements indicated no significant differences between the reference and asphalt rubber sections. It is however early to draw conclusions after one year of traffic therefore additional follow-up of the test sections is needed to draw a conclusion.]]></description>
      <pubDate>Fri, 03 Apr 2020 15:48:39 GMT</pubDate>
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      <title>Provsträckor med gummiasfalt: Ragn-Sells infart vid granulatanläggningen, Heljestorp</title>
      <link>https://trid.trb.org/View/1347577</link>
      <description><![CDATA[More than 150 000 tonnes of rubber asphalt has been manufactured between the years 2007–2013 in Sweden for paving of more than 150 km road sections. Pavement performance of four slightly different road structures constructed during the fall of 2011 is presented in this work. The test sections were instrumented with strain gauges at the bottom of bituminous layers. The objective is to evaluate and demonstrate the performance of asphalt rubber used in various pavement layers with respect to fatigue cracking. It is concluded that the asphalt rubber layers could have significant effect on fatigue cracking of pavement based on strain measurements during the first year after construction of the test road.]]></description>
      <pubDate>Fri, 27 Mar 2015 12:05:50 GMT</pubDate>
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