1. ASTM D4767-02 (2002) Standard test method for consolidated undrained triaxial compression test for cohesive soils. Annual book of ASTM standards. American Society for Testing and Materials, Philadelphia
2. ASTM D3967-05 (2005) Standard test method for splitting tensile strength of intact rock core specimens. Annual book of ASTM standards. American Society for Testing and Materials, Philadelphia
3. ASTM C136-06 (2006) Standard test method for sieve analysis of fine and coarse aggregates. Annual book of ASTM standards. American Society for Testing and Materials, Philadelphia
4. ASTM D422-07 (2007) Standard test method for particle size analysis of soils. Annual book of ASTM standards. American Society for Testing and Materials, Philadelphia
5. ASTM D7263-09 (2009) Standard test methods for laboratory determination of density (unit weight) of soil specimen. Annual book of ASTM standards. American Society for Testing and Materials, Philadelphia