Influence of UV Radiation on the Appearance Quality of Fair-Faced Concrete and Mitigation Approaches DOI Open Access
Chengqing Wu, Jia Ke, Zhijie Liu

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(9), P. 2039 - 2039

Published: April 29, 2025

Fair-faced concrete has garnered substantial attention in recent years owing to its aesthetic appeal and eco-friendly attributes. However, as a construction material, long-term performance is highly dependent on service environment, particularly ultraviolet (UV) radiation. This research focuses examining the influence of UV exposure managing admixtures employed investigating effects radiation appearance quality, pore distribution, micro-composition fair-faced concrete. Results indicate that enhances moisture evaporation, increases surface bulk porosity, accelerates carbonation early hydration reactions, forming more calcite surface. These factors degrade quality To mitigate UV-aging damage, two common anti-UV admixtures, nano-silica (NS) water-based fluorocarbon paint (FC), were evaluated. show both effectively improve UV-resistance concrete, when combined. The FC+NS group reduced glossiness loss rate from 28.63% 12.95% after 28 days exposure, with porosity maximum diameter recorded at 0.157% 3.66 mm, respectively, indicating excellent quality. findings underscore potential these individually combination, enhance resistance sustaining durability under prolonged exposure.

Language: Английский

Influence of UV Radiation on the Appearance Quality of Fair-Faced Concrete and Mitigation Approaches DOI Open Access
Chengqing Wu, Jia Ke, Zhijie Liu

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(9), P. 2039 - 2039

Published: April 29, 2025

Fair-faced concrete has garnered substantial attention in recent years owing to its aesthetic appeal and eco-friendly attributes. However, as a construction material, long-term performance is highly dependent on service environment, particularly ultraviolet (UV) radiation. This research focuses examining the influence of UV exposure managing admixtures employed investigating effects radiation appearance quality, pore distribution, micro-composition fair-faced concrete. Results indicate that enhances moisture evaporation, increases surface bulk porosity, accelerates carbonation early hydration reactions, forming more calcite surface. These factors degrade quality To mitigate UV-aging damage, two common anti-UV admixtures, nano-silica (NS) water-based fluorocarbon paint (FC), were evaluated. show both effectively improve UV-resistance concrete, when combined. The FC+NS group reduced glossiness loss rate from 28.63% 12.95% after 28 days exposure, with porosity maximum diameter recorded at 0.157% 3.66 mm, respectively, indicating excellent quality. findings underscore potential these individually combination, enhance resistance sustaining durability under prolonged exposure.

Language: Английский

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