Version 1
: Received: 2 November 2023 / Approved: 2 November 2023 / Online: 3 November 2023 (06:38:52 CET)
How to cite:
Yan, Z.; Wu, L.; Lu, F.; Ren, J.; Wu, C. Chloride Diffusion Investigation under Different Magnitudes of Hydrostatic Pressure for Pre-Cracked Concrete. Preprints2023, 2023110177. https://doi.org/10.20944/preprints202311.0177.v1
Yan, Z.; Wu, L.; Lu, F.; Ren, J.; Wu, C. Chloride Diffusion Investigation under Different Magnitudes of Hydrostatic Pressure for Pre-Cracked Concrete. Preprints 2023, 2023110177. https://doi.org/10.20944/preprints202311.0177.v1
Yan, Z.; Wu, L.; Lu, F.; Ren, J.; Wu, C. Chloride Diffusion Investigation under Different Magnitudes of Hydrostatic Pressure for Pre-Cracked Concrete. Preprints2023, 2023110177. https://doi.org/10.20944/preprints202311.0177.v1
APA Style
Yan, Z., Wu, L., Lu, F., Ren, J., & Wu, C. (2023). Chloride Diffusion Investigation under Different Magnitudes of Hydrostatic Pressure for Pre-Cracked Concrete. Preprints. https://doi.org/10.20944/preprints202311.0177.v1
Chicago/Turabian Style
Yan, Z., Jie Ren and Chuangzhou Wu. 2023 "Chloride Diffusion Investigation under Different Magnitudes of Hydrostatic Pressure for Pre-Cracked Concrete" Preprints. https://doi.org/10.20944/preprints202311.0177.v1
Abstract
The service life of the reinforced concrete structure in the marine environment can be impaired significantly due to chloride-induced corrosion. However, how the chloride diffusion in pre-cracked concrete structures is affected by the hydrostatic pressure magnitude is poorly understood. This study experimentally examined the effect of hydrostatic pressure on the chloride diffusion in pre-cracked concrete. Cracks with five different widths, i.e., 20 μm, 40 μm, 60 μm, 80 μm, and 100 μm, were manually created using a splitting tensile apparatus respectively. The chloride diffusion in the concrete with a certain crack was then studied under four different hydrostatic pressures of 0 MPa, 0.1 MPa, 0.3 MPa, and 0.5 MPa. Experimental results show that the chloride diffusion in concrete with a crack greatly relies on both the hydrostatic pressure and the crack width. The chloride concentration increases as the hydrostatic pressure grows, particularly for the wider cracks with width ranging from 60 μm to 100 μm. Surprisingly, the hydrostatic pressure has a negligible effect on the chloride distribution in the concrete with a crack width no larger than 40 μm. Both the chloride diffusion coefficient and the surface chloride concentration of concrete increased gradually as the hydrostatic pressure increased. The experimental findings enrich our understanding of the behavior of pre-cracked concrete when exposed to chloride-induced corrosion at different depths of marine environments.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
