flowable fills using fly ash of cogeneration plant

摘要

The present invention relates to a fluidized filler composition using fly ash generated from a combined heat and power plant, and more specifically, to a fluidized filler composition in a zero compacting method which makes fly ash, which can be used as a filler for filling in pipes, a back of a structure, sinkhole, a void or abandoned mines, and is hydraulic because generated from a combined heat and power plant, as a base material, and adjusts mixing ratios of materials to be easy to control strength and condensation time and a unit weight. The fluidized filler composition using fly ash generated from a combined heat and power plant of the present invention comprises: 30-80 wt% of a first fly ash; 1-40 wt% of any one strength modifier selected among cement and blast furnace slag; 1-30 wt% of any one condensation adjusting agent selected among anhydrous gypsum, hemihydrate, and a second fly ash; and 1-50 wt% of a unit weight adjusting agent selected among foaming agents and aggregate. The first fly ash is generated from a combined heat and power plant which burns pulverized coal by adding limestone.