Effects of Freeze–Thaw Cycles and Load on Concrete Columns
Author Information
Author(s): Chen Chen, Zhang Kai, Ye Lin, Ribakov Yuri
Primary Institution: School of Civil Engineering, Institute of Disaster Prevention, Sanhe, China
Hypothesis
How do freeze-thaw cycles and sustained load affect the durability and bearing capacity of reinforced concrete columns?
Conclusion
The study found that the combined effects of freeze-thaw cycles, sustained load, and salt corrosion significantly reduce the durability and bearing capacity of reinforced concrete columns.
Supporting Evidence
- The mass loss rate of concrete columns increased significantly after 150 freeze-thaw cycles.
- Reinforced concrete columns under sustained load showed accelerated deterioration compared to unloaded columns.
- After 150 freeze-thaw cycles, the relative dynamic modulus of elasticity decreased significantly for all tested columns.
Takeaway
This study shows that when concrete columns are exposed to freezing and thawing while under load, they can get damaged and lose strength over time.
Methodology
The study involved preparing 32 reinforced concrete columns and testing them under various conditions of freeze-thaw cycles, sustained load, and salt corrosion.
Limitations
The study primarily focused on immediate effects and did not account for long-term durability or real-world environmental conditions.
Digital Object Identifier (DOI)
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