The rheological parameters of Fresh SCC were examined through the theory of rheology, the rheological model of Fresh SCC was assumed to be H-B rheological model, the flowing time T-i' of Fresh SCC in the simulated L-box through Fluent, later compared with the flowing time T-i of Fresh SCC in the actual L-box, the target function was established according to the least square method, three rheological parameters tau(0), k and n were optimized performing the pattern search method, and 6 sets of rheological parameters of tau(0), k and n acquired from the back analysis underwent the V-funnel verifi...