氟铝络合物对硫酸铝型速凝剂性能的影响

材料导报

2020, Vol. 34

Issue (Z1): 178-180

无机非金属及其复合材料

氟铝络合物对硫酸铝型速凝剂性能的影响

陈镇杉¹, 吴玉生¹, 彭鹏飞¹, 黄舟¹, 陈梅红¹, 蔡博群²

1 中国建材检验认证集团厦门宏业有限公司,厦门 361000;
2 北京工业大学建筑工程学院,北京 100022

Effect of Fluoro-aluminum Complexes on the Properties of Aluminum SulfateType Accelerator

CHEN Zhenshan¹, WU Yusheng¹, PENG Pengfei¹, HUANG Zhou¹, CHEN Meihong¹, CAI Boqun²

1 China Building Material & Certification Group Xiamen Co., Ltd, Xiamen 361000, China;
2 College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China

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摘要本工作研究了硫酸铝型速凝剂中氟铝络合物含量对速凝剂凝结时间和胶砂强度性能的影响。结果表明,在硫酸铝型速凝剂中,氟铝络合物增加,速凝剂促凝效果增加,但胶砂1 d抗压强度则总体降低。热分析和XRD测试结果表明,氟铝络合物能促进水泥钙矾石形成,缩短凝结时间,同时可能生成某种含氟的水化产物,抑制水泥1 d水化程度,且该产物不一定是CaF₂。

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关键词: 氟铝络合物速凝剂抗压强度水化产物

Abstract: In this paper, the influence of the content of fluoro-aluminum complexes in aluminum sulfate type accelerator on the setting time and compressive strength was studied.The results showed that when the content of the fluoro-aluminum complexes in the aluminum sulfate type accelerator increased, the accelerating effect of the accelerator increased, but the 1 d compressive strength decreased. Thermal analysis and XRD test results show that the fluoro-aluminum complexes can promote the formation of AFt in cement, shorten the setting time, and may generate some fluorine-containing hydration products to inhibit the 1 d hydration. The fluorine-containing hydration products may not be CaF₂.

Key words: fluoro-aluminum complexes accelerator compressive strength hydration products

发布日期: 2020-07-01

ZTFLH:

TU528.42

基金资助: 厦门市建设局科技计划项目(XJK2019-1-3)

作者简介: 陈镇杉,男,1989年生,工程师,研究方向为高性能水泥基材料。

引用本文:

陈镇杉, 吴玉生, 彭鹏飞, 黄舟, 陈梅红, 蔡博群. 氟铝络合物对硫酸铝型速凝剂性能的影响[J]. 材料导报, 2020, 34(Z1): 178-180.
CHEN Zhenshan, WU Yusheng, PENG Pengfei, HUANG Zhou, CHEN Meihong, CAI Boqun. Effect of Fluoro-aluminum Complexes on the Properties of Aluminum SulfateType Accelerator. Materials Reports, 2020, 34(Z1): 178-180.

链接本文:

http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2020/V34/IZ1/178

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