氯盐侵蚀下碱激发混凝土内钢筋锈蚀研究进展

Research Progress on Reinforcement Corrosion in Alkali Activated Concrete under Chloride Attack

碱激发胶凝材料是一种新型绿色胶凝材料,碱激发混凝土以环保、强度高、耐久性好等一系列特点得到国内外学者的广泛关注,对其力学性能和耐久性的研究逐渐成为热点。本文综述了氯离子对碱激发混凝土的侵蚀机理,比较了碱激发材料与普通硅酸盐混凝土面对氯离子侵蚀的不同响应,对氯盐侵蚀下碱激发混凝土耐久性研究和碱激发混凝土内钢筋锈蚀研究进行了介绍,并总结了碱激发混凝土现阶段研究所面临的问题。

Alkali activated cementitious material is a new type of green cementitious material.Alkali activated concrete has been widely concerned by domestic and foreign scholars for a series of characteristics such as environmental protection,high strength and good durability.The research on its mechanical properties and durability has gradually become a hot spot.This article summarized the mechanism of chloride ion attack on alkali activated concrete,compared the different responses of alkali activated materials and ordinary Portland concrete to chloride ion attack.The durability research of alkali activated concrete and the reinforcement corrosion in alkali activated concrete under the chloride attack were introduced,and the problems faced by the alkali activated concrete research at this stage were summarized.