Research Progress of Properties of Magnesium Phosphate Cement

被引：0
|
作者：
Liu J. [1 ]
Guo R. [1 ]
Zhang Z. [1 ]
机构：
[1] Department of Civil Engineering, Tsinghua University, Beijing
来源：
| 1600年 / Cailiao Daobaoshe/ Materials Review卷 / 35期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Bond strength; Durability; Hydration mechanism; Mineral admixture;
D O I：
10.11896/cldb.20070106
中图分类号：
学科分类号：
摘要：
Magnesium phosphate cement (MPC), composed of dead burned MgO and soluble phosphate, is a new cement material. The advantages of MPC are high early strength, low shrinkage, strong sulfate resistance and strong bonding with Portland cement-based materials. Howe-ver, the water resistance of MPC is weak and the cost of raw materials is high. Therefore, mineral admixtures such as GGBS, fly ash and metakaolin are used to replace a part of raw materials. At suitable replacement ratio, mineral admixtures could retard setting time, elevate compressive strength and enhance water resistance of MPC. Besides, the MgO to phosphate mole ratio and water to binder ratio have an important influence on the property of MPC. In this paper, the hydration mechanism, compressive strength, bonding strength, durability and volume stability of MPC are summarized. Finally, the limitations of current researches and suggestions as well as perspectives for the future are provided. © 2021, Materials Review Magazine. All right reserved.
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页码：23068 / 23075
页数：7
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