Synthesis and thermal behavior of geopolymer-type material from waste ceramic

被引：134
作者：
Sun, Zengqing
Cui, Hao
An, Hao
Tao, Dejing
Xu, Yan
Zhai, Jianping
Li, Qin [1 ]
机构：
[1] Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 49卷
关键词：
Geopolymer; Waste ceramic; Synthesis; Thermal behavior; Compressive strength; SILICATE ACTIVATOR PH; FLY-ASH; MECHANICAL-PROPERTIES; METAKAOLIN; CONCRETE; MORTARS; CEMENT; BRICK;
D O I：
10.1016/j.conbuildmat.2013.08.063
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Waste ceramic was activated by alkali hydroxides and/or sodium/potassium silicate solutions to synthesize geopolymer-type material in this study. The synthesized geopolymer pastes were characterized by mechanical test, TG-DSC, SEM, XRD, as well as FT-IR analyses. And the thermal behavior of synthesized geopolymer was determined in terms of compressive strength evolution by exposure to 100, 200, 400, 600, 800, and 1000 degrees C. The synthesized geopolymer pastes exhibited a maximum 28-day compressive strength of 71.1 MPa and favorable anti-thermal properties by showing a higher compressive strength of 75.6 MPa after heat treatment of 1000 degrees C. The results indicate that waste ceramic could serve as a satisfying source material for thermostable geopolymer. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：281 / 287
页数：7
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