Comparative Evaluation of Different Aperture Geogrids for Ballast Reinforcement through Triaxial Testing and Discrete Element Modeling Qian, Y., D. Mishra, E. Tutumluer and J. Kwon. 2013. Comparative Evaluation of Different Aperture Geogrids for Ballast Reinforcement through Triaxial Testing and Discrete Element Modeling. In: Geosynthetics 2013. Long Beach, CA. Files Comparative Evaluation of Different Aperture Geogrids for Ballast Reinforcement through Triaxial Testing and Discrete Element Modeling - Full Text (PDF) Categories Infrastructure