The Effect of Nano-Particles and Water Glass on the Water Stability of Magnesium Phosphate Cement Based Mortar

被引：10

作者：

Feng, Hu ^{[1
]}

Zhao, Xiangyu ^{[1
]}

Chen, Gang ^{[2
]}

Miao, Changwei ^{[3
]}

Zhao, Xiaocong ^{[1
]}

Gao, Danying ^{[1
]}

Sun, Gangzhu ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Civil Engn, Zhengzhou 450001, Henan, Peoples R China

[2] Henan Univ Engn, Coll Civil Engn, Zhengzhou 451191, Henan, Peoples R China

[3] China Nucl Ind Geotech Engn Co Ltd, Zhengzhou 451191, Henan, Peoples R China

来源：

MATERIALS | 2019年 / 12卷 / 22期

基金：

中国国家自然科学基金;

关键词：

magnesium phosphate cement; nano-particles; water glass; water stability; MECHANICAL-PROPERTIES; FLY-ASH; RESISTANCE; PERFORMANCE; DURABILITY; HYDRATION; STRENGTH; RATIO; BOND;

D O I：

10.3390/ma12223755

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper experimentally presented the water stability of magnesium phosphate cement (MPC) modified by nano-Al2O3 (NA), nano-Fe2O3 (NF) and water glass (WG). The optimal addition of 6% NA, 2% NF and 1% WG significantly improved the water stability of MPC mortar by 86%, 101% and 96% after 28 days of water immersion, respectively. X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) were used to analyze the water stability of MPC modified by NA, NF and WG. The results of the micrograph and composition analysis revealed that the proper amount of NA, NF or WG could fill the micro pores and improve the hydration of interior structures of MPC mortar. Thus, the microstructural compactness was satisfied to keep a good water stability of MPC mortar.

引用

页数：22

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