Effect of the Ratio SiO2/Al2O3 on the Structure, Properties, and Thermal Stability of Geopolymer Refractory Materials

被引：3
|
作者：
Dembovska, L. [1 ]
Pundiene, I. [2 ]
Bajare, D. [1 ]
Bumanis, G. [1 ]
机构：
[1] RTU, Riga, Latvia
[2] Vilnyus Tech Univ VGTU, Gediminas Inst Bldg Mat, Vilnius, Lithuania
来源：
GLASS AND CERAMICS | 2018年 / 75卷 / 3-4期
关键词：
geopolymer materials; refractory; strength; density; thermal stability; FLY ASHES; LIGHTWEIGHT GEOPOLYMER; ALKALINE ACTIVATION; METAKAOLIN; AGGREGATE; PRODUCTS; BEHAVIOR;
D O I：
10.1007/s10717-018-0039-0
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The properties of lightweight geopolymer materials (GM) based on refractory technogenic aluminosilicate wastes were studied. The effect of the ratio of the oxides SiO2 and Al2O3 in the compositions of GM on the physical and mechanical properties of GM was investigated. It was found that SiO2/Al2O(3) reduction in the GM composition results in higher density and strength and lower water absorption of the samples after a keeping period. After firing at temperatures 800 and 1000A degrees C the strength of the samples becomes all the higher the lower the ratio SiO2/Al2O3 in the composition. The heat resistance of the samples comprises four thermal cycles for high and more than seven cycles low ratio SiO2/Al2O3.
引用
收藏
页码：112 / 117
页数：6
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