Investigation on Resistance of Chloride Penetration of Alkali Activated Slag Concrete and Related Electrical Test Methods

被引：0
|
作者：
Yu Q. [1 ,2 ]
Wan X. [1 ,3 ]
Zhao T. [1 ,3 ]
Wang T. [1 ]
Han X. [1 ]
Sun Z. [1 ]
机构：
[1] School of Civil Engineering, Qingdao University of Technology, Qingdao
[2] Qingdao Qingjian New Material Group Co., Ltd, Qingdao
[3] Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao University of Technology, Qingdao
来源：
Cailiao Daobao/Materials Reports | 2022年 / 36卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Alkali-activated slag concretes; Electric flux method; Electrical resistivity; Rapid chloride ion diffusion coefficient method; Resistance of chloride penetration;
D O I：
10.11896/cldb.20120067
中图分类号：
学科分类号：
摘要：
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. © 2022, Materials Review Magazine. All right reserved.
引用
收藏
相关论文
共 23 条
  • [1] Zhao T J., Concrete Permeability, (2006)
  • [2] Loche J M, Ammar A, Dumargue P., Cement and Concrete Research, 35, 9, (2004)
  • [3] Monfore G E., Journal of the PCA Research Development Laboratories, 5, (1968)
  • [4] Hansen M R, Leming M L, Zia P, Et al., Special Publication, 140, (1993)
  • [5] Feldman R F, Chan G W, Brousseau R J, Et al., Materials Journal, 91, 3, (1994)
  • [6] Lu X Y, Li C L, Chen M X, Et al., China Concrete and Cement Products, (1999)
  • [7] Han J G, Li K F., Journal of Building Materials, 18, 4, (2015)
  • [8] Maes M, Gruyaert E, De Belie N., Materials and Structures, 46, 1, (2013)
  • [9] He Z X, Shi C J, Hu X, Et al., Journal of the Chinese Ceramic Society, 43, 8, (2015)
  • [10] Hu X, Shi C J, Shi Z, Et al., Cement and Concrete Composites, 104, (2019)
123