1. Almes RG, Butail A (1976) “Coal refuse: its behavior related to the design and construction of coal refuse disposal facilities,” Proceedings of the Seventh Ohio Valley Soils Seminar on Shales and Mine Wastes, Lexington, KY
2. ASTM Designation D422 (2007)A “Standard test method for particle-size analysis of soils.” Annual Book of ASTM Standards, American Society of Testing Materials, Easton, MD
3. ASTM Designation D698 (2007)B “Standard test methods for laboratory compaction characteristics of soil using standard effort.” Annual Book of ASTM Standards, American Society of Testing Materials, Easton, MD
4. ASTM Designation D854 (2007)C “Standard test methods for specific gravity of soil solids by water pycnometer.” Annual Book of ASTM Standards, American Society of Testing Materials, Easton, MD
5. ASTM Designation D2216 (2007)D “Standard test methods for laboratory determination of water (moisture) content of soil and rock by mass.” Annual Book of ASTM Standards, American Society of Testing Materials, Easton, MD