1. ASTM C618. 2012. Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete. Annual book of ASTM standards, Philadelphia, American Society for Testing and Materials, www.astm.org.
2. ASTM D2435-96. 2011. Standard Test Methods for One-Dimensional Consolidation Properties of Soils Using Incremental Loading. Annual book of ASTM standards, Philadelphia, American Society for Testing and Materials.
3. ASTM D421-98. 2007. Standard Practice for Dry Preparation of Soil Samples for Particle-Size Analysis and Determination of Soil Constants. Annual book of ASTM standards, Philadelphia, American Society for Testing and Materials.
4. ASTM D4546-90. 2008. Standard Test Methods for One-Dimensional Swell or Settlement Potential of Cohesive Soils. Annual book of ASTM standards, Philadelphia, American Society for Testing and Materials.