Chamani, Mohammad R., Hosseinpour, M., Mostofinejad, D., and Esmaeilkhanian, B. (2014), "Simulation of Concrete Flow in V-funnel Test and the Proper Range of Viscosity and Yield Stress for SCC", Magazine of Concrete Research, Vol. 66, No. 4, pp. 175-185.
Simulation of Concrete Flow in V-funnel Test and the Proper Range of Viscosity and Yield Stress for SCC
|Authors||Chamani, Mohammad R., Hosseinpour, M., Mostofinejad, D., and Esmaeilkhanian, B.|
|Journal||Magazine of Concrete Research|
|Keywords||Concrete technology & manufacture; Dams, barrages & reservoirs; Stress analysis|
The present paper highlights the flow simulation of self consolidating concrete (SCC) in V-funnel test that is In this study, the analytical method (Matson and Hogg, 2007) for the dam break flow of non-Newtonian fluids is extended to model the self-compacting concrete (SCC) flow in the L-box test. The rheology of fresh SCC is expressed by a Bingham model. To simplify the mathematical formulation, inertia forces and the effect of rebar are neglected and the fluid is assumed homogeneous. Several SCC mixtures with different yield stresses are also tested to measure the L-box blocking ratio. The proposed model arrested profiles satisfactorily coincide with the experimental results. A relation between yield stress and the L-box blocking ratio is also derived. A comparison between the predicted values of yield stress and the experimental results shows that proposed model successfully evaluates the yield stress of the tested samples. Moreover, it was observed that the proposed model is valid in the case of L-box with rebar. Finally, a plot of the relative yield stress versus L-box blocking ratio is presented that can be practically used for workability design of SCC.