Quick method for evaluating concrete carbonation suppressive performance of coating materials

Yasuharu Kawamura, Kenji Motohashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Various studies have been conducted to estimate the carbonation suppressive effects of coating materials on concrete. The traditional method for determining these effects uses an accelerated carbonation test of concrete specimens with coating materials. It takes some months to perform these acceleration tests. To evaluate the suppressive effect more quickly, it is necessary to develop a faster and simpler method. In our study, we applied a box method to evaluate the carbon dioxide (CO2) permeability of a variety of coating materials. Moreover, we confirmed the effects that the amount of calcium hydroxide (Ca(OH)2) and the humidity conditions had on carbon dioxide permeability. We found that the permeability of carbon dioxide could be evaluated quantitatively using the box method. In addition, this evaluation was completed within one or two weeks. In conclusion, the box method can evaluate the carbon dioxide permeability quickly and is useful for predicting the carbonation suppressive effect of coating materials on concrete.

Original languageEnglish
Title of host publicationISEC 2013 - 7th International Structural Engineering and Construction Conference
Subtitle of host publicationNew Developments in Structural Engineering and Construction
EditorsSiamak Yazdani, Amarjit Singh
PublisherResearch Publishing Services
Pages595-599
Number of pages5
ISBN (Electronic)9810753551, 9789810753559
DOIs
Publication statusPublished - 2013 Jan 1
Event7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013 - Honolulu, United States
Duration: 2013 Jun 182013 Jun 23

Publication series

NameISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction

Conference

Conference7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction, ISEC 2013
CountryUnited States
CityHonolulu
Period13/6/1813/6/23

Keywords

  • Box method
  • Calcium hydroxide
  • Carbon dioxide permeability
  • Carbonation suppression
  • Coating materials
  • Concrete

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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  • Cite this

    Kawamura, Y., & Motohashi, K. (2013). Quick method for evaluating concrete carbonation suppressive performance of coating materials. In S. Yazdani, & A. Singh (Eds.), ISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction (pp. 595-599). (ISEC 2013 - 7th International Structural Engineering and Construction Conference: New Developments in Structural Engineering and Construction). Research Publishing Services. https://doi.org/10.3850/978-981-07-5354-2-M-60-448