<p><p><strong>Reference(s):</strong></p><p><em>Benson and Khire (1994)<br>Cieselski and Collins (1993)<br>Hicks et al. (1995)</em></p><p><strong>Method Summary</strong></p><p>Direct shear tests are performed in accordance with ASTM D3080. To reduce the effects of boundary conditions, a large-scale direct shear device was constructed. Two steel rings were used to construct a shear box 28 cm in diameter and 25 cm deep. Shear and normal stresses are applied with pneumatic and hydraulic actuators. Loads are measured with load cells and deformations were monitored using Linear Variable Differential Transducers (LVDTs).</p><p><strong>Accuracy and Precision</strong></p><p>All tests showed that changes in properties of the sand caused by reinforcement were sensitive to the aspect ratio of the strips provided the strip content remained unchanged.</p><p><strong>Adequacy of Coverage</strong></p><p>The QC/QA methods can be implemented using a reasonable number of tests.</p><p><strong>Implementation Requirements </strong></p><p>Implementation requirements (cost, personnel, training, equipment, and time) for the QC/QA method are not excessive.</p><p><strong>General Comments</strong></p><p>The results of this study suggest that strips cut from reclaimed HDPE may prove useful as soil reinforcement in highway and light-duty geotechnical applications.</p></p>