红水河2025，Vol.44Issue(6)：26-30,37,6.DOI:10.3969/j.issn.1001-408X.2025.06.005
混凝土硫酸盐侵蚀机理与防护对策综述
Review on Mechanism and Protective Measures of Sulfate Attack on Concrete
刘雨冰 1吴丽波 1李建华 2蒲进 2任志勇 2赵春 2李文博2
作者信息
- 1. 中国电建集团贵阳勘测设计研究院有限公司,贵州 贵阳 550081
- 2. 西藏大唐扎拉水电开发有限公司,西藏 昌都 854000
- 折叠
摘要
Abstract
This paper systematically analyzes the complex mechanisms of sulfate attack on concrete and its macro-micro damage processes,summarizes effective protective measures,which provides a theoretical basis and technical reference for enhancing the long-term durability and engineering safety of concrete structures in harsh environments.Through a literature review,the chemical reaction mechanisms and performance evolution patterns of sulfate attack are examined.Technical approaches to improve sulfate resistance are systematically summarized from four aspects:concrete mix design,cement,mineral admixtures and chemical admixtures.The application and comparative analysis of these strategies are validated using engineering case studies from Zhala Hydropower Station in Xizang and Xiate Hydropower Station in Xinjiang.The results show that by reducing the water-binder ratio,selecting low-C3A cement,adding appropriate amounts of mineral admixtures(such as fly ash,slag or silica fume),and using water reducing agent and air-entraining agents,the compactness and microstructure of concrete can be significantly improved,and the resistance to sulfate attack can be effectively improved.The engineering cases show that the scheme of"ordinary Portland cement+high-volume fly ash"not only meets the design requirements for sulfate resistance but also offers good technical and economic benefits.Systematic protection strategy should be adopted to resist sulfate attack of concrete.In practical engineering,based on the level of environmental erosion and material characteristics,the mix design,cementitious material system and admixture usage should be holistically optimized to achieve the best balance between structural durability and economic efficiency.关键词
硫酸盐侵蚀/混凝土耐久性/侵蚀机理/防护对策/矿物掺合料Key words
sulfate attack/concrete durability/deterioration mechanism/protective measures/mineral admixtures分类
建筑与水利引用本文复制引用
刘雨冰,吴丽波,李建华,蒲进,任志勇,赵春,李文博..混凝土硫酸盐侵蚀机理与防护对策综述[J].红水河,2025,44(6):26-30,37,6.
