1. Bridge Design Specifications,2012
2. Standard Test Method for Direct Shear Test of Soils under Consolidated Drained Conditions. ASTM D3080–11,2011
3. Standard Test Method for Measuring Geosynthetic Pullout Resistance in Soil. ASTM D6706–1,2013
4. Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer. ASTM D854–14,2014
5. Standard Test Method for Density and Unit Weight of Soil in Place by Sand-Cone Method. ASTM D1556–15,2015