Conference paper Open Access

Determination And Evaluation Of Structural Remaining Substance Of Asphalt Roads - Asphalt Analysis

Sebastian Lipke


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    <subfield code="a">Remaining Substance; asphalt pavement; asphalt properties (stiffness, fatigue); analytical design</subfield>
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    <subfield code="a">7th Transport Research Arena TRA 2018 (TRA 2018)</subfield>
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    <subfield code="a">Determination And Evaluation Of Structural Remaining Substance Of Asphalt Roads - Asphalt Analysis</subfield>
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    <subfield code="a">&lt;p&gt;Especially in Germany in the future road construction will be shaped less by the new construction but rather through&lt;br&gt;
the maintenance and renewal. Because the existing road substance is used up in growing ever stronger and quicker&lt;br&gt;
measure. With reference to the steadily rising traffic load and for a qualified maintenance planning the knowledge of&lt;br&gt;
the real structural condition of an asphalt pavement gets more and more important. The present paper presents an&lt;br&gt;
approach that forecasts the remaining service life of an asphalt pavement on the basis of asphalt parameters&lt;br&gt;
determined by laboratory tests. Therefore asphalt samples were taken from existing asphalt pavements which are&lt;br&gt;
already bearing many years of traffic load and their specific asphalt properties such as stiffness and fatigue&lt;br&gt;
resistance were determined by tests. The asphalt material properties of an asphalt road for several cross-sections (all&lt;br&gt;
required cores about a length of 10m) and several sections (required cores with a distance between 100m and 150m&lt;br&gt;
to each other) are determined and evaluated. Likewise, the volumetric properties of the asphalts and the material&lt;br&gt;
properties from the individual components in the asphalt mix are considered in the analysis and evaluation. With&lt;br&gt;
these results of the asphalt studies in the laboratory together with a forecasting method based on the analytical&lt;br&gt;
design of asphalt pavements the possibility exists to give statements to the expected remaining service life of asphalt&lt;br&gt;
pavements.&lt;/p&gt;</subfield>
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