<p><p><strong>Current FHWA Reference(s):<br></strong><em>Holtz et al. (2008)</em><strong>Supporting Reference(s):<br></strong><em>AASHTO (1993, 2001)<br>Berg et al.

<p><p><h2>Project Summary/Scope:</h2>Nine low-volume flexible pavement sections were constructed at the Advanced Transportation Research and Engineering Laboratory (ATREL) at the University of Illinois, Urbana-Champaign (UIUC). The nine sections were divided into three categories based on the total thickness of the pavement system structure. The first category has 8 inches of aggregate base and 3 inches of Hot-Mix Asphalt (HMA).

<p><p><strong>Reference(s):</strong></p><p><em>Christopher et al. (2010)<br>Holtz et al. (2008)</em></p><p><strong>Method Summary</strong></p><p>A clear and concise procedure for installing geosynthetics in base courses for reinforcement is important to make sure design assumptions are met during installation. It is important to verify that the roadway is properly grubbed and cleared of all vegetation and debris. During construction, observations can be made to identify problem areas.

<p><p><strong>Reference(s):</strong></p><p><em>Al-Qadi et al. (1996)<br>Collin et al. (1996)<br>Collins et al. (2005)<br>Holder et al. (2004)<br>Huntington et al. (1999)<br>Perkins (1999, 2002, 2009)<br>Webster (1992)<br>Christopher et al.