pce powder is a new generation of high-performance superplasticizer. Compared with naphthalene superplasticizer, it has high water reduction rate, good Slump Resistance and low shrinkage. The only disadvantage is that the cost is high. At present, large-scale projects should be mainly concentrated in projects with high concrete quality requirements, including Shanghai maglev track beam, Donghai Bridge, some projects of the Three Gorges, Sutong Bridge, etc. In China, polycarboxylic acid water reducing agent has just started, and there is a considerable gap compared with advanced countries. This paper combines polycarboxylic acid with a variety of early strength and retarding components, hoping to solve the slump retention and reinforcement performance of polycarboxylic acid through experiments.
