Abstract: This study explores the physical and mechanical properties of concrete with circulated fluidized bed combustion (CFBC) fly ash, ground granulated blast furnace slag (GGBFS) and coal fly ash. Five different blended cements were prepared to cast concrete specimens and the slump, unit weight (density), compressive strength, length change of blended cement concrete were measured. Tests show that the specimens with coal fly ash have better workability. Meanwhile, the replacement of cement by CFBC fly ash, GGBFS, and coal fly ash lead to reduce the unit weight, compressive strength and length change of concrete. The concrete specimen with the replacement of cement by CFBC fly ash of 10%, GGBFS of 10%, and coal fly ash of 10% was recommended based on the present results.