<p><p><strong>References:<br></strong><em>Adam and Kopf (1998)<br>Adam and Kopf (2004)<br>ISSMGE (2005)<br>Mn/DOT (2007)<br>Mooney et al. (2010)<br>Newman and White (2008)<br>RVS 8S.02.6 (1999)<br>Samaras et al. (2001)<br>Vennapusa et al. (2010)<br>White et al. (2007a, 2008a)<br>Ztve StB/TP BF-StB (1994)</em></p><p><strong>Method Summary</strong></p><p>Roller-integrated IC/CCC measurements provide nearly 100% coverage of compacted soil. Use of these measurements for QC and QA on some earthwork construction projects is described in the references shown above. Different ways of implementing the technology have been described in the current specifications. Roller compaction measurements obtained in automatic feedback control mode (i.e., IC) have to be interpreted properly as they are influenced by the roller amplitude, frequency, and speed. All of the current specifications recommend using constant amplitude, frequency, and speed (i.e., CCC) during calibration process and for QC/QA.</p><p><em> </em><strong>Accuracy and Precision</strong></p><p>Repeatability of the roller measurements is evaluated in some studies (Mooney et al. 2010, White et al. 2009a). Generally, roller measurements are considered repeatable. Roller operation parameters (e.g., vibration amplitude, frequency, and roller speed) influence the roller compaction measurements.</p><p><em> </em><strong>Adequacy of Coverage</strong></p><p>Provides nearly 100% coverage of compacted areas.</p><p><em> </em><strong>Implementation Requirements </strong></p><p>Implementation of the technology requires specialized equipment and proprietary software to analyze the results. Field engineers will require training to interpret the roller results.</p><p><em> </em><strong>General Comments</strong></p><p>This technique can be effectively used for QC. It has the potential for QA if site-specific correlations can be developed through field trial test sections.</p></p>