[1]郑娟荣,刘丽娜..地质聚合物在高温作用后物相变化的研究[J].郑州大学学报(工学版),2007,28(03):5-8.[doi:10.3969/j.issn.1671-6833.2007.03.002]
　Zheng Juanrong,Liu Lina.Study on phase changes of geological polymers after high temperature[J].Journal of Zhengzhou University (Engineering Science),2007,28(03):5-8.[doi:10.3969/j.issn.1671-6833.2007.03.002]

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地质聚合物在高温作用后物相变化的研究()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

28

期数:

2007年03期

页码:

5-8

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Study on phase changes of geological polymers after high temperature

作者:

郑娟荣; 刘丽娜.

郑州大学,土木工程学院,河南,郑州,450001, 郑州大学,土木工程学院,河南,郑州,450001

Author(s):

Zheng Juanrong; Liu Lina

关键词:

地质聚合物;  高温后物相变化;  三维网状结构;  XRD;  DSC和TG分析

Keywords:

geopolymers;  Phase change after high temperature;  three-dimensional network structure;  XRD;  DSC and TG analysis

DOI:

10.3969/j.issn.1671-6833.2007.03.002

文献标志码:

A

摘要:

对地质聚合物在高温作用后的物相变化进行研究,地质聚合物的热分析(DSC和TG)表明,经65℃干燥1 h的地质聚合物还保存14%的水,其中12%的水在300℃脱去,剩余的化学结合水在600℃才脱去;地质聚合物的XRD分析表明,在20℃～800℃间,地质聚合物呈无定形状态,到1 000℃时开始形成KAlSiO4、SiO2和Al2O3;地质聚合物在高温作用后脱水或三维网状结构的解聚会使地质聚合物胶凝强度降低.

Abstract:

The thermal analysis (DSC and TG) of the geological polymer showed that 65% of the water was preserved after drying at 1°C for 14 h, of which 12% of the water was removed at 300°C, and the remaining chemically bound water was removed at 600°C. XRD analysis of geological polymers showed that between 20 °C~800 °C, the geological polymers were in an amorphous state, and KAlSiO1, SiO000 and Al4O2 began to form at 2 3 °C. The dehydration of geological polymers after high temperature or the disaggregation of three-dimensional network structure reduces the gelling strength of geological polymers.

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