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Chloride Ion Adsorption Capacity of Anion Exchange Resin in Cement Mortar

Title
Chloride Ion Adsorption Capacity of Anion Exchange Resin in Cement Mortar
Author
이한승
Keywords
anion exchange resin; cement mortar; chloride adsorption
Issue Date
2018-04
Publisher
MDPI AG
Citation
MATERIALS, v. 11, No. 4, Article no. 560
Abstract
This paper presents the effect of anion exchange resin (AER) on the adsorption of chloride ions in cement mortar. The kinetic and equilibrium behaviors of AER were investigated in distilled water and Ca(OH)(2) saturated solutions, and then the adsorption of chloride ions by the AER in the mortar specimen was determined. The AER was used as a partial replacement for sand in the mortar specimen. The mortar specimen was coated with epoxy, except for an exposed surface, and then immersed in a NaCl solution for 140 days. The chloride content in the mortar specimen was characterized by energy dispersive X-ray fluorescence analysis and electron probe microanalysis. The results showed that the AER could adsorb the chloride ions from the solution rapidly but had a relatively low performance when the pH of its surrounding environment increased. When the AER was mixed in the cement mortar, its chloride content was higher than that of the cement matrix around it, which confirms the chloride ion adsorption capacity of the AER.
URI
https://www.mdpi.com/1996-1944/11/4/560/htmhttp://repository.hanyang.ac.kr/handle/20.500.11754/99123
ISSN
1996-1944
DOI
10.3390/ma11040560
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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