INVESTIGADORES
UÑAC Rodolfo Omar
artículos
Título:
Characterization of moist pozzolana: Stability and Flow Parameters
Autor/es:
M.E. MEDICI; O. A. BENEGAS; F. AGUIRRE; O. C. NOCERA; M.R. BAUDINO; I. IPPOLITO; R.O. UÑAC; A.M. VIDALES
Revista:
MATERIALS AND STRUCTURES
Editorial:
SPRINGER
Referencias:
Año: 2011 vol. 44 p. 1389 - 1398
ISSN:
1359-5997
Resumen:
We present here experimental results on
the flow and stability conditions for a granular system
as a function of the moisture percentage present
inside the sample. The granular material used in all
the experiments was a pozzolanic ash frequently used
in cement production. Water was added to the sample
in order to obtain different moisture percentages
measured in water weight over dry sample weight.
We studied values up to 6%. Firstly, different
stability angles were measured as a function of the
moisture of the material. Secondly, we related these
angles to some parameters of the flow of the material
through a silo with different geometries and obtain a
basic phase diagram for the flow. This phase diagram
is of great help to set appropriate funnel and hopper
conditions in silo devices often used in cement
industries. Finally, some of our results are compared
with basic theories and with our own simulation
models in order to understand the behavior of wet
granular systems.