Effects of curing conditions with different temperature and humidity on damage evolution of concrete during freeze–thaw cycling

Effects of curing conditions with different temperature and humidity on damage evolution of concrete during freeze–thaw cycling

To clarify the relationship between the curing conditions (temperature and humidity) of concrete and its frost resistance, several concretes with different water-binder (w/b) ratios and curing conditions were investigated by observing their microstructural damage in a freeze–thaw (F-T) environment u...

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Veröffentlicht in:Materials and structures 2022-03, Vol.55 (2), Article 80
Hauptverfasser: Chen, Junhao, Li, Yanlong, Li, Yang, Wen, Lifeng, Guo, Hanyu
Format: Artikel
Sprache:eng
Schlagworte:
Building construction
Building Materials
Civil Engineering
Concrete
Curing
Damage
Engineering
Frost resistance
Humidity
Machines
Manufacturing
Materials Science
Microcracks
Microstructure
NMR
Nuclear magnetic resonance
Original Article
Processes
Solid Mechanics
Storage modulus
Theoretical and Applied Mechanics
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Zusammenfassung:To clarify the relationship between the curing conditions (temperature and humidity) of concrete and its frost resistance, several concretes with different water-binder (w/b) ratios and curing conditions were investigated by observing their microstructural damage in a freeze–thaw (F-T) environment using nuclear magnetic resonance (NMR). The results reveal that the curing temperature and humidity significantly influence the pore distribution and porous quality of concrete. With the decrease of the curing temperature and humidity and the increase of the w/b ratio, the proportion of macropores (0.05 μm 
ISSN:1359-5997
1871-6873
DOI:10.1617/s11527-022-01921-z