Contrastive experiment and research on fly ash to improve concrete performance in cement and concrete

The research shows that compared with the properties of fly ash concrete,fly ash composite portland cement concrete have good 3d and 28d strength.Long age strength of concrete is related to the quality of fly ash.Durability of concrete may be improved when fly ash is mixed with cement or concrete,but it is found that durability of concrete is better when fly ash is put into cement.