Experimental Study on the Influence of Superplasticizer on the Performance of Ecotype Ultra-High Performance Concrete (E-UHPC)

A kind of Ecotype Ultra High Performance Concrete (E-UHPC) with silicate high strength cement and a variety of industrial tailings as cementing system, green sand as aggregate and ecotype organic fiber as reinforcing material is proposed. The fluidity, flexural strength and compressive strength of E-UHPC under different factors were studied by different superplasticizer content and sand particle size. The results show that the variation trend of fluidity with particle size can be expressed as an exponential function. The peaceability of E-UHPC with Superplasticizer content of 8% is better, and the flexural strength and compressive strength are better than that of E-UHPC with superplasticizer content of 15%. The research results can provide reasonable suggestions for the content of superplasticizer and the optimization of sand particle size of E-UHPC.