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Title |
Evaluation of Air Permeability and Carbonation Behavior of Cement Mortar Using Infrared Thermography
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Authors |
남진원(Jin-Won Nam) ; 이현우(Hyeon-Woo Lee) ; 박우현(Woo-Hyun Park) ; 권성준(Seung-Jun Kwon) |
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DOI |
https://doi.org/10.4334/JKCI.2026.38.4.473 |
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Keywords |
시멘트 모르타르; 공극률; 내구성능; 적외선 화상이미지; 투기성 cement mortar; porosity; durability performance; IRTI (infrared thermal image); permeability |
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Abstract |
Cement mortar is a construction material with pores those are formed through hydration reactions and have a considerable effect on the durability performance of the material. In this study, changes in temperatures on cement mortar surfaces under cooling or heating conditions were obtained through averaged IRTI (infrared thermal image) over the surface area, and compared with durability performance outcomes. The porosity, permeability coefficient, and carbonation rate were derived from cement mortar samples with w/c ratios in the range of 0.4~0.6 and their relationships with the average IRTI rate over test duration were obtained. To take into account the characteristics of the entire cement mortar sample in each case, gradients of the changing temperatures were derived and compared with the durability test results. Durability performance depending on the porosity showed close relationships with surface temperature changes, and the proposed technique demonstrates good applicability to durability evaluation as a non-destructive technique.
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