Degradation of fly ash concrete under the coupled effect of carbonation and chloride aerosol ingress

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jun Liu
  • Xiaochi Chen
  • Xiaodong Wang
  • Feng Xing
  • Ningxu Han
  • Yijian He

Detail(s)

Original languageEnglish
Pages (from-to)364-372
Journal / PublicationCorrosion Science
Volume112
Online published8 Aug 2016
Publication statusPublished - Nov 2016

Abstract

This paper presents an experimental investigation regarding the coupled effect of carbonation and chloride aerosol ingress on the durability performance of fly ash concrete. Test results demonstrate that carbonation significantly affects the chloride ingress profile, reduces the chloride binding capacity, and accelerates the rate of chloride ion diffusion. On the other hand, the carbonation rate of fly ash concrete is reduced by the presence of chlorides aerosol. The interaction nature between concrete carbonation and chloride aerosol ingress is also demonstrated by the microscopic analysis results obtained from scanning electron microscope and mercury intrusion porosimetry.

Research Area(s)

  • Fly ash concrete, Carbonation, Chloride aerosol ingress, Material degradation, Corrosion, MERCURY INTRUSION POROSIMETRY, ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY, PORE STRUCTURE, INDUCED CORROSION, CEMENT MATERIALS, STEEL CORROSION, PENETRATION, BEHAVIOR, MORTAR, ENVIRONMENT

Citation Format(s)

Degradation of fly ash concrete under the coupled effect of carbonation and chloride aerosol ingress. / Liu, Jun; Qiu, Qiwen; Chen, Xiaochi; Wang, Xiaodong; Xing, Feng; Han, Ningxu; He, Yijian.

In: Corrosion Science, Vol. 112, 11.2016, p. 364-372.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review