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Cement is an important building material with high energy consumption and high emission, while energy conservation and emission reduction has been the consensus over the world in the background of the global climate warming. Aiming at the problems of large cement consumption and long construction period of deep mixing column, a double-liquid curing agent composed of low thickness cement slurry and sodium silicate solution is proposed to replace cement slurry in deep mixing columns. The installation equipment is modified to adapt to the double-liquid curing agent. The effect of the double-liquid curing agent is researched through field​ tests, which verify the environmental and economic benefits in cement saving and construction accelerating. The double-liquid curing agent for deep mixing columns has great promotion potential.