DBPapers
DOI: 10.5593/SGEM2014/B42/S18.016

INFLUENCE OF WASTE REFRACTORY BRICK ON THE THERMAL AND MECHANICAL BEHAVIOR OF MORTARS

M. SAIDI, B. SAFI
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-16-2 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 2, 119-126 pp

ABSTRACT
In recent years there in various high temperature applications to a gradual replacement
of refractory shaped by monolithic materials (concrete). These have the advantage of
being more flexible in their utilization and cooked directly on site during the initial
startup of the facility. The development of efficient hydraulic binder allows heavier use
of these monolithic materials. This study has allowed us, first, to enhance the waste in
mechanical terms (20 % added) and to identify the optimal composition relative to the
reference composition (0% added). According to the study on the thermal behavior of
these mortars at high temperatures, there is a proportional increase in mass loss as a
function of temperature. The sample containing 20% added shows good thermal
stability since its mass loss is lower compared to other compositions. The test pieces in
which the percentage of addition is less than or equal to 10 % do not exhibit heat
resistance at high temperatures (chipping, cracking and splitting).

Keywords: Refractory brick waste; mortar, Fine aggregate replacement; Compressive
strength, loss weight.

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