this project is studied for develop the mixing proportion of concrete to can inflow plate itself for use with a large diameter bored pile by replacing cement with Pozzolan materials and adding mixture include fly ash is 20% and 30% wt.% replacing cement with Silica fume 2-8 wt.% and test of the ability to work. test with Slump flow, J-Ring, Bleeding, Static Column Test and Compressive Strength The incubation period 28 day. From the results of the experiment, found that