Investigation on Resistance of Chloride Penetration of Alkali Activated Slag Concrete and Related Electrical Test Methods
YU Qi1,2, WAN Xiaomei1,3, ZHAO Tiejun1,3, WANG Teng1, HAN Xiao1, SUN Zhongtao1
1 School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, Shandong,China 2 Qingdao Qingjian New Material Group Co., Ltd, Qingdao 266108, Shandong, China 3 Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao University ofTechnology, Qingdao 266033,Shandong, China
Abstract: Alternating current resistivity method, electric flux method and rapid chloride migration method (RCM) were applied to evaluatethe resistance of chloride penetration in alkali-activated slag concrete and the evolution mechanism was analyzed. At the same time, combined with the long-term exposure test of chloride environment, the applicability of the above three electrical parameters test methods to the alkali slag concrete was discussed. The results show that the slag concrete activated by sodium hydroxide behaves higher resistance to chloride penetration than the slag concrete activated by water glass. The addition of fly ash increases the porosity of alkali-activated slag concrete and weakens the ability to resist chloride penetration. There are good correlations among the evaluation results of resistivity method, electric flux method and RCM method, and all of them behave sound applicability to alkali-activated slag concrete.
于琦, 万小梅, 赵铁军, 王腾, 韩笑, 孙忠涛. 碱激发矿渣混凝土抗氯离子渗透性及电测试验方法研究[J]. 材料导报, 2022, 36(5): 20120067-6.
YU Qi, WAN Xiaomei, ZHAO Tiejun, WANG Teng, HAN Xiao, SUN Zhongtao. Investigation on Resistance of Chloride Penetration of Alkali Activated Slag Concrete and Related Electrical Test Methods. Materials Reports, 2022, 36(5): 20120067-6.
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2022, Vol. 36 
