Flow of wet natural pozzolana

M. E. MÉDICI, O. A. BENEGAS, F. AGUIRRE, M. R. BAUDINO, R. O. UÑAC, A. M. VIDALES AND I. IPPOLITO

Journal of Physics: Conference Series

Institute of Physics and IOP Publishing Limited

Año: 2009 vol. 166 p. 1 - 9

1742-6588

We present experimental results on the flow and stability conditions for naturalpozzolana, a natural volcanic sand widely used in concrete production. We measured differentangles involved in equilibrium conditions for sand piles and relate them to the flux parametersnecessary to produce a silo evacuation. We vary some of the geometrical parameters in the siloto inspect the different flux responses of the system. Results are showed as a function ofhumidity present in the system. In this way, we related critical angles with flux conditionsthrough a silo under different geometric setups and different humidity degrees, thus setting upa basic phase diagram for flux.