Application of high performance concrete pumping construction in east pumping station project in Bostan Lake

By carrying on technical argument on trial to the C60 high strength concrete with artificial-sand,the concrete pumping construction was successfully applied in core tube wall of Peking Century Wealth Center.

this article introduced the design, experimen- tation and pumping construction of shielding structure overweight concrete in a certain reinforced concrete project which adopted the biggest linac in China.

Controlling crack measures in application of ready-mix pumping concrete;

This paper expounds the reasons of pumping concrete crack and its prevention measures.

The cement, aggregate and intrusion aid are selected and the mixing ratio is tested in an effort to determine the optimum mix proportion to meet the construction technology requirements of using the high-label pumping concrete in the main bridge pier on Jinan Yellow River Bridge No.

By using engineering example, this paper introduces in detail the t ec hnical process of the pumped concrete construction, and sums up and evaluates th e construction results.

Pipeline jam accidents appear frequently during pumping construction of concrete of high-pier and long-span bridge,which result in not only great economic loss,but also serious delay of project completion.