Method for manufacturing lightweight aggregate using fly ash and lightweight aggregate

摘要

The present invention relates to a process for mixing 80 to 95% by weight of a flyash and 5 to 20% by weight of cement, a step of continuously supplying the mixture to a pelletizer, a water containing 1 to 10% by weight of an alkali activating agent A step of curing the spherical aggregate at a temperature of 100C or lower and a saturated water vapor pressure for 24 hours or less, and a step of curing the spherical aggregate at a temperature of 100C or lower and a saturated water vapor pressure for 24 hours or less, A method for producing a fly ash lightweight aggregate characterized by a combination of a step of drying the spherical aggregate is disclosed.;The aggregate produced according to this method is a lightweight aggregate having a specific gravity of 1.2 or less and has a very round shape, thereby reducing the amount of sand in concrete production and improving workability at the time of bibimbing.