Effect of Holding Temperature on Properties of Different Types of Heat-Resistant Concrete

Effect of Holding Temperature on Properties of Different Types of Heat-Resistant Concrete With a different exposure temperature within concrete based on alumina cement there is formation of different hydrated phases, i.e., amorphous or crystalline AH3, crystal hydrates CAH10, C2AH8, and C3AH6. In developing or modifying refractory concrete composition it is necessary to consider the effect of holding temperature on concrete structure formation and operating properties. Properties are studied for traditional heat-resistant concrete, modified with addition of micro-alumina, and that based on a chamotte filler with aluminate cement grade Gorkal 70 with holding temperatures of 10, 20, and 30°C. The effect of differences in concrete structure formation with maturity over 48 h is studied by an ultrasonic method. It is established that differences in structure formation during concrete maturity affect concrete properties after firing at 1100 and 1200°C. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Effect of Holding Temperature on Properties of Different Types of Heat-Resistant Concrete

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Publisher
Springer US
Copyright
Copyright © 2014 by Springer Science+Business Media New York
Subject
Material Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-014-9619-x
Publisher site
See Article on Publisher Site

Abstract

With a different exposure temperature within concrete based on alumina cement there is formation of different hydrated phases, i.e., amorphous or crystalline AH3, crystal hydrates CAH10, C2AH8, and C3AH6. In developing or modifying refractory concrete composition it is necessary to consider the effect of holding temperature on concrete structure formation and operating properties. Properties are studied for traditional heat-resistant concrete, modified with addition of micro-alumina, and that based on a chamotte filler with aluminate cement grade Gorkal 70 with holding temperatures of 10, 20, and 30°C. The effect of differences in concrete structure formation with maturity over 48 h is studied by an ultrasonic method. It is established that differences in structure formation during concrete maturity affect concrete properties after firing at 1100 and 1200°C.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Mar 9, 2014

References

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