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2. Standard test method for density, relative density (specific gravity), and absorption of coarse aggregate;American Society for Testing and Materials (ASTM) C127-12,2012
3. Standard test method for density, relative density (specific gravity), and absorption of fine aggregate;American Society for Testing and Materials (ASTM) C128-12,2012
4. Standard specification for portland cement;American Society for Testing and Materials (ASTM) C150/C150M-12,2012
5. Standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete;American Society for Testing and Materials (ASTM) C618-12a,2012