Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 110: Issue 1
Dehydration investigations of a refractory concrete using DTA method
Authors:
N. Obradović Institute of Technical Sciences-SASA, Knez Mihajlova 35/IV, 11000, Belgrade, Serbia

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A. Terzić Institute for Technology of Nuclear and Other Raw Materials, F. d′Eperey 86, 11000, Belgrade, Serbia

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Lj. Pavlović Institute for Technology of Nuclear and Other Raw Materials, F. d′Eperey 86, 11000, Belgrade, Serbia

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S. Filipović Institute of Technical Sciences-SASA, Knez Mihajlova 35/IV, 11000, Belgrade, Serbia

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V. Pavlović Institute of Technical Sciences-SASA, Knez Mihajlova 35/IV, 11000, Belgrade, Serbia

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Pages:
37–41
Online Publication Date:
03 Sep 2011
Publication Date:
01 Oct 2012
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-011-1880-3
Keywords:
Sintering kinetics; DTA; Refractory concrete
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Abstract

The base mix refractory concrete is corundum-based, containing corundum as refractory aggregate and CAC as hydraulic binder, with a spinel as an additive. The authors investigated the dehydration reactions which occur from the moment when water is added (at the beginning of components mixing), to the moment when installed refractory concrete lining is put into the service. Sintering process kinetic of low-cement content refractory concrete was investigated by means of differential thermal analysis at four different heating rates (5, 10, 20, and 30 °C/min). Thus, temperature was increased from 20 to 1100 °C. It was noticed that first dehydration step occurs at lower temperatures, indicating at a desorption of physically adsorbed and interlayer water molecules. Second dehydration step, at higher temperatures is due to dehydroxylation of the lattices and decomposition of the interlayer anions.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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