抄録
As one of the utilization of the fly ash, a method to mix fly ash as some fine aggregate at the time when it produces concrete is cited in crushed sand to supplement for fine grain. In this study, fresh property of concrete using fine aggregate which pre-mixed fly ash in concrete production and strength properties were examined. In conclusion, workability and materials separation resistance of concrete were improved by using FAS in comparison with only using crushed sand. About compressive strength, concrete using pre-mixed sand was concrete using crushed sand and river sand and higher than same class.
