1. ASTM C618. Standard specification for coal fly ash and raw or calcined natural pozzolan for usein concrete. ASTM International, United States.
2. ASTM D559. Standard test methods for wetting and drying compacted soil-cement mixtures. ASTM International, United States.
3. ASTM D560. Standard test methods for freezing and thawing compacted soil-cement mixtures. ASTM International, United States.
4. Effect of Pozzolanic Additives on the Strength Development of High Performance Concrete