Effect of Nano-MgO on the Durability of Cement-Based Materials br

被引：1

作者：

Chen, Yaohua ^{[1
]}

Liu, Jiesheng ^{[1
]}

Feng, Bowen ^{[1
]}

Wei, Jing ^{[1
]}

Tan, Xiaoming ^{[1
]}

Zhang, Man ^{[1
]}

Sun, Zhengguang ^{[2
]}

机构：

[1] Wuhan Polytech Univ, Sch Civil Engn & Architecture, 68 Xuefu S Rd, Wuhan 430023, Hubei, Peoples R China

[2] Hubei Univ, Sch Mat Sci & Engn, 368, Youyi Ave, Wuhan 430062, Hubei, Peoples R China

来源：

JOURNAL OF TESTING AND EVALUATION | 2022年 / 51卷 / 02期

关键词：

nano-magnesium oxide; cement-based materials; permeability resistance; crack resistance; sulfate; corrosion resistance; freeze-thaw resistance; MECHANICAL-PROPERTIES; AUTOGENOUS SHRINKAGE; PASTE; PERFORMANCE; CONCRETE; SULFATE; SILICA; MICROSTRUCTURE; DEFORMATION; ATTACK;

D O I：

10.1520/JTE20220116

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The autogenous shrinkage of cement-based materials is difficult to solve. Some studies have found that nano-magnesium oxide (MgO) can be used as an expansive agent to improve the shrinkage performance of cement-based materials. The basic research on nano-MgO in cement-based materials has appeared, but the research on the durability of cement-based materials by nano-MgO is very rare. In this article, nano-MgO was incorporated into cement mortar, and the experimental research studies effects of nano-MgO content on permeability resistance, crack resistance, sulfate corrosion resistance, and freeze-thaw resistance of cement mortar. The results show that nano-MgO can improve the durability of mortar. The mechanism of nano-MgO is discussed by this article in improving the durability of cement mortar, and it provides a theoretical basis for the further application of nano-MgO in cement-based materials.

引用

页数：13

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