改性磷酸镁水泥制备及其力学性能试验研究

白伟亮; 李明; 谢齐

doi:10.13204/j.gyjzG20101904

改性磷酸镁水泥制备及其力学性能试验研究

doi: 10.13204/j.gyjzG20101904

白伟亮^1,2,
李明³,
谢齐^2, ,

1. 中国电子工程设计院有限公司, 北京 100142;
2. 中电投工程研究检测评定中心有限公司, 北京 100142;
3. 天津大学建筑工程学院, 天津 300072

详细信息

作者简介:
白伟亮,男,1984年出生,博士,高级工程师。

通讯作者:
谢齐,xieqi200400805@163.com。

计量
- 文章访问数: 99
- HTML全文浏览量: 10
- PDF下载量: 3
- 被引次数: 0
出版历程
- 收稿日期: 2020-10-19
- 网络出版日期: 2021-08-19

EXPERIMENTAL STUDY ON PREPARATION AND MECHANICAL PROPERTIES OF MODIFIED MAGNESIUM PHOSPHATE CEMENT

BAI Weiliang^1,2,
LI Ming³,
XIE Qi^{2
, ,}

1. China Electronics Engineering Design Institute Co., Ltd., Beijing 100142, China;
2. C+E Center for Engineering Research Test and Appraisal Co., Ltd., Beijing 100142, China;
3. School of Civil Engineering, Tianjin University, Tianjin 300072, China

摘要

摘要: 针对磷酸镁水泥凝结时间过快、施工性能差等问题，利用偏高岭土和空心玻璃微珠对其进行改性试验，研究偏高岭土和空心玻璃微珠对磷酸镁水泥强度、凝结时间及工作性能的影响。结果表明，氧化镁和磷酸二氢钾质量比在1~1.5时，随着偏高岭土掺量的增加，凝结时间逐步延长，强度有下降趋势，偏高岭土最佳掺量比为0.5~0.8；随着空心玻璃微珠掺量的增加，凝结时间有延长趋势，流动性显著提高，强度略有下降，最佳掺量为8%~12%。最终制备的磷酸镁水泥凝结时间可控、强度可靠，且表观密度较低，满足加固材料要求。
- 磷酸镁水泥 /
- 偏高岭土 /
- 空心玻璃微珠 /
- 工作性能 /
- 力学性能
Abstract: In order to solve the problems of fast setting time and poor operability of magnesium phosphate cement, metakaolin and hollow glass microbeads were used to modify the cement, and magnesium phosphate cement with properties of reinforcement material was prepared. The influence of metakaolin and hollow glass microbeads on cement strength, setting time and working performance were studied. The results showed that when the mass ratio of magnesium oxide and potassium dihydrogen phosphate was 1-1.5, the setting time gradually lengthens and the strength declined as the content of metakaolin increased. The content of metakaolin should be 0.5-0.8. With the increase of the content of hollow glass microbeads, the setting time tended to prolong, the fluidity increased significantly and the strength decreased slightly. The optimal content of hollow glass microbeads was 0.08-0.12. The magnesium phosphate cement prepared had controllable setting time, reliable strength, and low apparent density, which could meet the requirements of reinforcement materials.
- magnesium phosphate cement /
- metakaolin /
- hollow glass-bead /
- workability /
- mechanical properties

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参考文献(21)

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