Materiales de Construcción, Vol 50, No 258 (2000)

Rheology of cement mixtures with dolomite filler


https://doi.org/10.3989/mc.2000.v50.i258.406

P. J. Martínez de la Cuesta
Dpto. de Ingeniería Química. Univ. de Málaga y Lab. Demarcación Carreteras en Andalucia Oriental, Spain

E. Rus Martínez
Dpto. de Ingeniería Química. Univ. de Málaga y Lab. Demarcación Carreteras en Andalucia Oriental, Spain

F. Díaz Molina
Dpto. de Ingeniería Química. Univ. de Málaga y Lab. Demarcación Carreteras en Andalucia Oriental, Spain

S. Luna Blanco
Dpto. de Ingeniería Química. Univ. de Málaga y Lab. Demarcación Carreteras en Andalucia Oriental, Spain

Abstract


This experimental program has studied the behavior of fresh paste made up from cements mixed with dolomite filler. Through prior experiments the starting point is obtained for the designs 22 and 23 factorials. With these designs the governing equations are established that influence the specific surface of the filler, the filler percentage and the ratio water/(cement + filler), used as objective functions: test probe penetration, flow on table and shear stress in viscometer.
Also the type of rheological conduct is determined and the influence over initial and final setting is observed.

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