| abstract |
The present invention is a soft ground solidification stabilizer composition comprising waste concrete sludge produced in a circulating aggregate manufacturing process as a composition comprising a powder and a solidified material selectively treated by calcining the waste concrete sludge dewatering cake 350 ~ 600 ℃ The present invention relates to a solidifying agent composition using waste concrete sludge which presents a high economic and environmental contribution technology through effective recycling of waste resources by producing solidifying agents for soil improvement, river banks, and landfill stabilization. Calcination step of sintering the waste concrete sludge cake generated in the circulation aggregate manufacturing process in a rotary kiln at 350-600 ° C. for 15-30 minutes to remove adsorbed moisture and organic matter and activating the hydration reaction material (S100); A pulverizing process of sintering calcined waste concrete sludge with a powder degree of 2,500 to 3,500 cm 2 / g (S200); A solidifying agent composition manufacturing process of mixing the pulverized waste concrete sludge powder, including 5 to 25 wt% of solidifying agent composition, 50 to 90 wt% of target soil of soft ground, and 5 to 25 wt% of water (S300); It characterized in that it comprises, 100wt% of the solidifying agent, 10 ~ 20wt% of waste concrete sludge calcined powder produced through the calcination step (S100) and crushing step (S200), 20 to 40wt% of the port cement, blast furnace Slag fine powder 20-40 wt%, calcium sulfoaluminate 5-15 wt%, 5-10 wt% anhydrous gypsum (Gypsum), and 1-10 wt% lime. |