Application of ultra-high pressure and low-resistance pipeline in ultra-high pumping for high-strength and high-performance concrete

The application of high-strength and high-performance concrete technology is more and more widespread with the fast developing of modern architecture.However,the great viscosity,high pumping resistance,low pumping efficiency of high-strength and high-performance concrete makes it difficult to be pumped,so it is important to select right high-strength and wear-resistant concrete conveying pipes.Bases on the construction experience of ultra-high pumping of high-performance concrete in Shenzhen Kingkey Finance Center project.The selection of the material,the con-necting forms of joints in different positions,and required arrangement of ultra-high pressure and low-resistance pipeline,were expounded.