1. Standard Specification for Sizes of Aggregate for Road and Bridge Construction;AASHTO M 43-05,2009
2. Standard Test Method for Bulk Density (unit weight) and Voids in Aggregates;ASTM C 29,2003
3. Standard Test Method for Permeability of Granular Soils (Constant head);ASTM D 2434-68,2006
4. Standard classification for sizes of aggregate for road and bridge construction;ASTM D 448-08,2008
5. A critical study on the applicability of Forchheimer and Wilkins equations for nonlinear flow through coarse granular media;Banerjee,2018