Utilization of super-hydrophobic steel slag in mortar to improve water repellency and corrosion resistance

被引：28

作者：

Shi, Zengqin ^{[1
]}

Wang, Qing ^{[1
,2
]}

Li, Xiaodong ^{[1
]}

Lei, Lulu ^{[1
]}

Qu, Lei ^{[1
]}

Mao, Junheng ^{[1
]}

Zhang, Haohui ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Civil Engn & Architecture, Qingdao 266590, Shandong, Peoples R China

[2] Taishan Univ, Coll Mech & Architectural Engn, Qingdao 271000, Shandong, Peoples R China

来源：

JOURNAL OF CLEANER PRODUCTION | 2022年 / 341卷

关键词：

Super-hydrophobic steel slag; Mortar; Water repellency; Corrosion resistance; Environmentally friendly method; PORE STRUCTURE; DURABILITY; CEMENT;

D O I：

10.1016/j.jclepro.2022.130783

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An environmentally friendly method of applying super-hydrophobic modified steel slag in cement-based materials to decrease water absorption and improve corrosion resistance is proposed. The wettability, cumulative water absorption, corrosion resistance, and mechanical properties of a mortar mixed with different amounts of a super-hydrophobic steel slag were studied. The results show that as the amount of the super-hydrophobic steel slag in the mortar increased, its wettability and surface free energy decreased. An increase in the superhydrophobic steel slag content of the mortar also led to a decrease in the cumulative water absorption. Electrochemical experiments showed that addition of the super-hydrophobic steel slag effectively improved corrosion resistance of the mortar. Addition of a small amount (<10%) of the super-hydrophobic steel slag in the mortar improved its compressive and flexural strengths. This proposed green method of using such steel slag in cementbased materials is conducive to achieving sustainable development.

引用

页数：8

共 37 条

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