Estimation of the rheological constants of high-fluidity concrete by using the thickness of excess paste
Oh Sang Gyun; Noguchi Takafumi; Tomosawa Fuminori
Abstract:In 1940, Kennedy found that the workability of concrete depends on the thickness of the excess cement paste, which is defined as the difference between the volume of the cement paste and the volume of the voids in the dry rodded mixed aggregate. It is thought that the mix design of concrete in fluid can be established by investigating how each factor of the mix design affects the consistency of concrete. The purpose of our research is to get a fundamental knowledge for the establishment design of high-fluidity concrete based on rheology.