1. Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use as a Mineral Admixture in Portland-Cement Concrete (ASTM C 311);American Society for Testing and Materials,1998
2. Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use as A Mineral Admixture in Concrete (ASTM C 618);American Society for Testing and Materials,1999
3. Standard Specification for Concrete Aggregate (ASTM C 33);American Society for Testing and Materials,1999
4. Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (ASTM C 109);American Society for Testing and Materials,1999
5. A study of disposed fly ash from landfills to replace Portland cement;Cheerarot;Waste Management,2004