Evaluation of moisture and gas permeability of surface treated concrete under accelerated weathering conditions towards conservation of reinforced concrete buildings

Author(s): M. Misono, K-i. Imamoto, K. Nagai, and C. Kiyohara
Paper category: Workshop
Book title: RILEM International workshop on performance-based specification and control of concrete durability
Editor(s): D. Bjegović, H. Beushausen, M. Serdar
ISBN: 978-2-35158-135-3
e-ISBN: 978-2-35158-136-0
Pages: 361 - 368
Total Pages: 8
Language: English

Abstract: 
Surface-impregnation materials and coating agents can be effective in keeping the authenticity of historical reinforced concrete buildings. This study investigates the effect of the surface-impregnation materials and coating agents in preventing the moisture and gas ingress into concrete. The following results were obtained: (1) surface-impregnation materials did not change the appearance of concrete and did not prevent the progress of carbonation. (2) Surface-coating agents changed the appearance of concrete, but they had a significant effect on the prevention of carbonation ingress. (3) A good agreement was found between air permeability and carbonation progress; however, the correlation between moisture content and air permeability was poor. It would, therefore, be necessary to develop other methods to evaluate the prevention effects of moisture ingress.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00