Research on the Correlation Between Natural Exposure Corrosion and Indoor Accelerated Corrosion of Q235 Steel in Marine Atmospheric Environment

LIU Hongbo; MA Wenzheng; ZHANG Haijiang; XIONG Yuechen

doi:10.3724/j.gyjzG25050807

Volume 56 Issue 8

Aug. 2026

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2026 > 56(8): 185-192

LIU Hongbo, MA Wenzheng, ZHANG Haijiang, XIONG Yuechen. Research on the Correlation Between Natural Exposure Corrosion and Indoor Accelerated Corrosion of Q235 Steel in Marine Atmospheric Environment[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(8): 185-192. doi: 10.3724/j.gyjzG25050807

Citation:

LIU Hongbo, MA Wenzheng, ZHANG Haijiang, XIONG Yuechen. Research on the Correlation Between Natural Exposure Corrosion and Indoor Accelerated Corrosion of Q235 Steel in Marine Atmospheric Environment[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(8): 185-192. doi: 10.3724/j.gyjzG25050807

Citation:

LIU Hongbo, MA Wenzheng, ZHANG Haijiang, XIONG Yuechen. Research on the Correlation Between Natural Exposure Corrosion and Indoor Accelerated Corrosion of Q235 Steel in Marine Atmospheric Environment[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(8): 185-192. doi: 10.3724/j.gyjzG25050807

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Research on the Correlation Between Natural Exposure Corrosion and Indoor Accelerated Corrosion of Q235 Steel in Marine Atmospheric Environment

doi: 10.3724/j.gyjzG25050807

1. School of Civil Engineering, Hebei University of Engineering, Handan 056038, China;
2. School of Civil Engineering, Tianjin University, Tianjin 300072, China

Received Date: 2025-05-08
Available Online: 2026-11-06

Abstract

Abstract

At present， laboratory accelerated corrosion is mostly used to study the corrosion behavior of structural steel in marine atmospheric environment. However， such laboratory simulations cannot simply replicate actual marine atmospheric conditions. Therefore， it is necessary to clarify the correlation between the corrosion behavior of steel in actual marine atmospheric environments and that in laboratory simulation environments. This study investigated the corrosion behavior of Q235 steel in four accelerated corrosion environments. Correlation analysis and acceleration ratio calculations were performed between the corrosion depth and corrosion products from these four groups of test results and the atmospheric corrosion results from Wanning and Qingdao. An investigation was conducted into the influence of factors such as the dry-wet cycle ratio and NaHSO₃ concentration. This study aimed to determine how these parameters affect the correlation between the accelerated corrosion test results and the natural corrosion behavior observed in Wanning and Qingdao. Correlation models between marine atmospheric exposure time and laboratory accelerated corrosion time were established for the Wanning and Qingdao regions. The results showed that to achieve a corrosion depth equivalent to 16 years in the marine atmospheric environments of Wanning and Qingdao， the test method using NaCl+0.001mol/L NaHSO₃ （1∶3） offered the highest acceleration efficiency， requiring 327.27 hours and 410.78 hours， respectively. However， the method with NaCl+0.02mol/L NaHSO₃ （3∶1） exhibited the lowest acceleration efficiency， requiring significantly longer durations of 1436.37 hours and 3170.76 hours， respectively.
- laboratory accelerated corrosion,
- natural marine atmospheric corrosion,
- correlation,
- Q235,
- acceleration ratio

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References(21)

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