Dynamic Fracture Properties of Basalt Fiber Concrete Under Freeze–Thaw Conditions
Author Information
Author(s): Pei Guangzhao, Xiao Dingjun, Zhang Miaomiao, Jiang Jiajie, Xie Jiping, Li Xiongzi, Guo Junbo
Primary Institution: Southwest University of Science and Technology, Mianyang, China
Hypothesis
How do freeze-thaw cycles affect the dynamic fracture properties of basalt fiber-reinforced concrete?
Conclusion
The study found that as the number of freeze-thaw cycles increases, the dynamic crack propagation speed in basalt fiber-reinforced concrete also increases, while the fracture toughness decreases.
Supporting Evidence
- Dynamic crack propagation speed increases with the number of freeze-thaw cycles.
- Fracture toughness decreases with an increasing number of freeze-thaw cycles.
- Basalt fibers positioned ahead of the crack tip improve mode I crack resistance.
Takeaway
This study shows that freezing and thawing can make concrete with basalt fibers crack faster and become weaker.
Methodology
The study used impact compression tests and numerical simulations to analyze the dynamic fracture properties of basalt fiber-reinforced concrete subjected to freeze-thaw cycles.
Limitations
The study does not account for the effects of a large number of uniformly distributed fibers on the stress intensity factor.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website