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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2021, Vol. 40 ›› Issue (1): 13-24.

Special Issue: 水泥混凝土

• Cement and Concrete • Previous Articles     Next Articles

Mechanism of Chloride Binding and Its Influence Factors inCement-Based Materials

SHI Tianyao1, CHEN Xingyu2, ZHANG Min1, LIU Qian1   

  1. 1. Yunnan Key Laboratory of Disaster Reduction in Civil Engineering,Faculty of Civil Engineering and Mechanics,Kunming University of Scienceand Technology,Kunming 650500,China;
    2. Yunnan Communications Investment & Construction Group Co.,Ltd.,Kunming 650051,China
  • Received:2020-08-04 Revised:2020-10-20 Online:2021-01-15 Published:2021-02-07

Abstract: Chloride ion erosion is the main cause of steel corrosion in cement-based materials.When chloride binding in cement,the corrosion of steel bars can be effectively delayed.This article summarizes from three aspects:(1) chloride binding mechanism;(2) test methods and characterization of chloride binding;(3) the influencing factors of chloride binding.Specific research are the cement components and hydration products how to binding chloride ion,as well as applicability of different test methods.Some factors that influenced chloride binding are analyzed,such as supplementary cement materials,curing time and pH etc.A further study is proposed in order to provide reference for the future study of reinforced concrete life prediction.

Key words: cement-based material, chloride binding, hydration product, test method, influencing factor

CLC Number: