Study on Optimization of Working Performance of Ultra High Performance Concrete

¹ Shanghai Construction Group Co., Ltd, Shanghai 200080, China
² Shanghai Engineering Research Center of Mega Structure High Performance Concrete

^* Corresponding author: 326956120@qq.com

Abstract

The water binder ratio is a key parameter in the mix design of ultra-high performance concrete. Aiming at the high sensitivity of ultra-high performance concrete to water consumption, the influence of water consumption on the performance of ultra-high performance concrete was studied in a narrow range. The compatibility ratio of raw materials of ultra-high performance concrete can be adjusted, but the space is small, so we try to improve the fluidity of concrete by physical and chemical means. The experimental results show that the fluidity of concrete increases slightly with the addition of glass beads, but the flexural properties of the concrete are adversely affected. With the addition of viscosity reducer, the workbility of concrete increases, but the compressive strength decreases.