The Application of Air-Entraining Admixtures for the Development of Heat Insulating Moulded Refractory Concretes

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The thesis deals with the possibility of kaolin suspensions specific weight lowering using air-entraining agents. These agents are usually used as concrete admixtures. The goal of the thesis is to verify an alternative possibility of creating porous structure in kaolin suspensions in order to prepare heat insulating moulded refractory concretes without using lightweight fillers. The effect of several air-entraining agents was compared, after that the dosage of agent and mixing conditions were optimized. The stabilization of prepared foams and practical application of selected agents were also part of the thesis.

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141-144

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August 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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