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The antifoaming agent, the air entraining agent and the Polycarboxylate Superplasticizer (PCE) were compounded by the "first elimination and then entraining" process and the compounding water reducing agent in the aqueous solution was studied of the Foaming performance and its application properties in concrete. The results show that compared with the unreacted water reducing agent, the “first elimination and then entraining” process can refine the bubble size of the water reducing agent aqueous solution and make the bubbles more uniform, and the concrete mixed with the Polycarboxylate Superplasticizer (PCE) , The fluidity and late strength are slightly improved, and the appearance performance is greatly improved. The number of large pores with a pore diameter of 1 to 2 mm is significantly reduced, and the super-atmospheric pores having a pore diameter larger than 2 mm are substantially eliminated.
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