Abstract
In this study, the rheological characteristic of the high-fluidity concrete was evaluated by the coefficient of viscosity and the shearing yield value that was measured by using the J shaped flow test. The effects of the mix proportion factors such as the water- cement ratio, the aggregate-cement ratio, the sand percentage and the addition quantity of the super plasticizer and the segregation agent on the rheological constants of the high-fluidity concrete were investigated. It was clarified that the shearing yield value of high-fluidity concrete can be made low by setting water-cement ratio and the sand percentage to the proper value, by setting the aggregate-cement ratio small, and the viscosity of high-fluidity concrete can be adjusted with the addition quantity of the segregation agent.
