Thermal properties of spray-coated geopolymer-type compositions
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Authors
Temuujin, Jadambaa
Minjigmaa, A
Rickard, William
Van Riessen, Arie
Date
2012Type
Journal Article
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Temuujin, Jadambaa and Minjigmaa, A and Rickard, William and Van Riessen, Arie. 2012. Thermal properties of spray-coated geopolymer-type compositions. Journal of Thermal Analysis and Calorimetry 107 (1): pp. 287-292.
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Journal of Thermal Analysis and Calorimetry
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Collection
Abstract
Thermal properties (DTA-TG and thermal expansion) of spray-coated fly ash-based geopolymer have been studied. The geopolymer composition selected for thermal spray coating had Si:Al = 3.3 and Na:Al = 1.45. To improve the fire resistant characteristics, fine- and coarse-milled vermiculite powder was added at 10 mass percent. Water:geopolymer ratios varied from 0.35 to 0.41 depending on vermiculite content and method of coating. Water added into a starting mixture to increase the flowability also decreased the geopolymerisation reaction.
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