Experimental Study on Capillary Water Absorption Performance of Coral Sand Concrete in High-Salt Environment
Publication: Journal of Materials in Civil Engineering
Volume 36, Issue 7
Abstract
The high-salt fog environment under a marine climate affects the capillary water absorption performance of porous building materials, causing changes in the thermal and wet properties of the materials and in their structural durability. Therefore, a capillary water absorption experiment of coral sand concrete (CSC) in different salt solution concentrations was designed in this study. The experimental results showed that salt had the effect of first promoting and then inhibiting capillary water absorption coefficient () with increased salt solution concentration. Salt had the effect of promoting liquid diffusivity (). In addition, by analyzing the surface tension and viscosity of a sodium chloride solution, the mechanism of the influence of liquid properties on was briefly explored. The results provide a theoretical basis for the establishment of a coupled heat and moisture transfer model of porous building materials in marine climates.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This study was financially supported by the National Natural Science Foundation of China (Project No. 52178061) and the Key Program of the National Natural Science Foundation of China (Project No. 51838011).
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Published In
Journal of Materials in Civil Engineering
Volume 36 • Issue 7 • July 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Sep 25, 2023
Accepted: Dec 12, 2023
Published online: Apr 18, 2024
Published in print: Jul 1, 2024
Discussion open until: Sep 18, 2024
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