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首页 > 过刊浏览>2024年第27卷第4期 >332-342. DOI:10.3969/j.issn.1007-9629.2024.04.007
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滨海环境下水泥基材料有机硅防护涂层的研究进展
作者:
作者单位:

1.青岛理工大学 土木工程学院，山东 青岛 266525;2.青岛理工大学 海洋环境混凝土技术教育部工程研究中心，山东 青岛 266520;3.青岛市政集团，山东 青岛 266071

作者简介:

李萌萌（1987—），女，山东潍坊人，青岛理工大学博士生.E-mail：limengmeng7@126.com

通讯作者:

金祖权（1977—），男，四川阆中人，青岛理工大学教授，博士生导师，博士.E-mail：jinzuquan@126.com

中图分类号:

TQ324.2+1;

基金项目:

国家自然科学基金资助项目（U2006224，51978352）；山东省自然科学基金资助项目（ZR2020JQ25）；“十四五”国家重点研发计划项目（2022YFE0133800）；青岛市科技领军人才项目（19-3-2-13-zhc）


Research Progress on Silane Protective Coatings of Cementitious Materials in Coastal Environment
Author:
Affiliation:

1.School of Civil Engineering， Qingdao University of Technology， Qingdao 266525， China;2.Engineering Research Center of Concrete Technology under Marine Environment， Ministry of Education， Qingdao University of Technology， Qingdao 266520， China;3.Qingdao Municipal Group， Qingdao 266071， China

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    摘要:

    有机硅涂料通过对侵蚀介质的传输抑制作用以及诱导结晶作用，赋予了水泥基体优越的表面防护效果，显著提升了混凝土结构的耐久性能与安全可靠性.本文归纳了有机硅涂料的分子结构特征及其对胶凝材料的作用机理，全面阐述了有机硅涂料对水泥基材料耐久性能的提升效果，探讨和展望了有机硅涂料在工程应用中存在的主要问题以及未来发展趋势，旨在为水泥基材料耐久性防护的深入研究与应用提供重要的理论指导与工程参考.

    Abstract:

    Silane coatings provide a variety of superior surface protection to cement substrates by corrosion transport inhibition and crystallization induction， improving the durability and safety reliability of concrete structure. The physical and chemical properties of silane coatings， the binding mechanisms for cementitious materials were summarized， while the effectiveness of silane coatings in improving the durability of cementitious materials were comprehensively reviewed. Additionally， the main issues and future development trends in engineering applications were analyzed and proposed， aiming to provide significant theoretical guidance and engineering reference for the in-depth research and application of durability protection of cementitious material.

    表 1 有机硅涂料处理后混凝土材料的抗氯盐侵蚀性能Table 1 Chloride resistance of concrete treated with silane coating
    图1 硅烷分子结构示意图Fig.1 Schematic diagram of silane and siloxane molecular structure
    图2 聚硅氧烷组分在水泥水化产物的表面吸附与融合Fig.2 Surface adsorption and fusion of polysiloxane components with cement hydration products［10］
    图3 聚硅氧烷对水化产物的孔隙封闭与结晶诱导Fig.3 Pore sealing and crystallization induction of hydration products by polysiloxane［17］
    图4 有机硅涂料作用下凝胶孔道中水的传输抑制Fig.4 Inhibition of water transport in gel channels with treatment of silane coating［24］
    图5 聚硅氧烷对混凝土中界面过渡区的增强效应Fig.5 Enhancement effect of polysiloxane on interfacial transition zone in concrete［49］
    图6 有机硅涂料处理后混凝土内部钢筋表面形态Fig.6 Surface morphology of steel bar inside concrete treated with silane coating［40］
    图7 硅烷处理后混凝土抗冻融性能Fig.7 Freeze-thaw resistance of concrete after silane treatment
    图8 有机硅涂层抗磨机理示意图Fig.8 Anti-wear mechanism of siloxane coatings［69］
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李萌萌,吴聪,金祖权,侯东帅,陈际洲.滨海环境下水泥基材料有机硅防护涂层的研究进展[J].建筑材料学报,2024,27(4):332-342

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  • 收稿日期:2023-05-11
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