Multi-Scale Degradation Behavior and Durability of BF-WEP Modified Concrete Under Saline Environments
- 1School of Smart Water Conservancy Engineering, Xinjiang Institute of Technology, Aksu 843100, China
- 2School of Energy and Chemical Engineering, Xinjiang Institute of Technology, Aksu 843100, China
- 3Ocean College, Zhejiang University, Zhoushan 316021, China
Abstract
To improve the durability of concrete in the saline environment of southern Xinjiang, concrete was modified with basalt fiber (BF) and waterborne epoxy (WEP). A one-year outdoor natural-exposure test in Aksu, Xinjiang, systematically investigated the corrosion resistance and multi-scale deterioration behavior and durability of the modified concrete. Compared with C0, the BF2E2 mixture reduced the mass loss rate and flexural strength loss rate by 54.65% and 37.20%, respectively, while increasing the relative dynamic elastic modulus by 14.55%. The modified mixtures also showed decreased total porosity, reduced average pore area, and narrowed crack widths, with significantly attenuated diffraction peaks of corrosion products. Threshold-crossing times obtained by extrapolation indicated that the earliest threshold-crossing time of BF2E2 was extended by 62.14% compared with C0, with the relative dynamic elastic modulus serving as the governing durability criterion. Mechanistic analysis revealed that BF and WEP acted collaboratively through fiber bridging and polymer filling, forming a dual-reinforcement network that suppressed deterioration from the microstructural to the macroscopic scale. These findings provide guidance for the durability-oriented design of concrete structures in saline environments.
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BibTeX
@article{zhang2026multiscale,
title = {{Multi-Scale Degradation Behavior and Durability of BF-WEP Modified Concrete Under Saline Environments}},
author = {Zhen Zhang and Lingtong Zhang and Liming Zhang and Fang Zhang and Yafei Chen and Baoyuan Li and Chuangzhou Wu},
journal = {Polymers},
year = {2026},
month = sep,
doi = {10.3390/polym18192391},
url = {https://europepmc.org/article/PMC/PMC13666926},
note = {CC BY},
}
RIS
TY - JOUR
TI - Multi-Scale Degradation Behavior and Durability of BF-WEP Modified Concrete Under Saline Environments
AU - Zhen Zhang
AU - Lingtong Zhang
AU - Liming Zhang
AU - Fang Zhang
AU - Yafei Chen
AU - Baoyuan Li
AU - Chuangzhou Wu
PY - 2026
DA - 2026/09/30
JO - Polymers
DO - 10.3390/polym18192391
UR - https://europepmc.org/article/PMC/PMC13666926
AB - To improve the durability of concrete in the saline environment of southern Xinjiang, concrete was modified with basalt fiber (BF) and waterborne epoxy (WEP). A one-year outdoor natural-exposure test in Aksu, Xinjiang, systematically investigated the corrosion resistance and multi-scale deterioration behavior and durability of the modified concrete. Compared with C0, the BF2E2 mixture reduced the mass loss rate and flexural strength loss rate by 54.65% and 37.20%, respectively, while increasing the relative dynamic elastic modulus by 14.55%. The modified mixtures also showed decreased total porosity, reduced average pore area, and narrowed crack widths, with significantly attenuated diffraction peaks of corrosion products. Threshold-crossing times obtained by extrapolation indicated that the earliest threshold-crossing time of BF2E2 was extended by 62.14% compared with C0, with the relative dynamic elastic modulus serving as the governing durability criterion. Mechanistic analysis revealed that BF and WEP acted collaboratively through fiber bridging and polymer filling, forming a dual-reinforcement network that suppressed deterioration from the microstructural to the macroscopic scale. These findings provide guidance for the durability-oriented design of concrete structures in saline environments.
SN - 2073-4360
ER -