<p><p><strong>References:<br></strong><em>White et al. (2007a, 2009a, 2009b)</em></p><p><strong>Method Summary</strong></p><p>Proof rolling is also referred to as heavy test rolling and is a widely used QA technique on earthwork construction projects by many state agencies (e.g, Mn/DOT, ODOT). It is typically performed using a pneumatic wheel roller on a compacted surface and the ruts observed beneath the wheels are measured to assess the support conditions. It has the advantage of providing a continuous visual record.</p><p><strong>Accuracy and Precision</strong></p><p>The accuracy and precision of this test method is strictly dependent on the experience of the field inspector measuring the rut depths.</p><p><strong>Adequacy of Coverage</strong></p><p>Provides a continuous coverage.</p><p><strong>Implementation Requirements</strong></p><p>It is easy to implement but can be difficult and expensive to setup.</p><p><strong>General Comments</strong></p><p>The concept of proof rolling using heavy rollers has been widely used on earthwork construction projects for QA. It provides a continuous visual record with ruts under wheel loads.</p></p>