Bending and durability performance of TRC permanent formwork under chloride corrosion and impressed current
Author Identifier
Farhad Aslani: https://orcid.org/0000-0002-7640-711X
Document Type
Journal Article
Publication Title
Construction and Building Materials
Volume
484
Publisher
Elsevier
School
School of Engineering
Funders
Jiangsu Provincial Key Research and Development Program (BE2019642) / National Natural Science Foundation of China (52408308, 52278322) / China Scholarship Council / University of Western Australia
Abstract
In order to further promote the application prospects of Textile Reinforced Concrete (TRC) permanent formwork, this paper used four-point bending test to investigate the mechanical properties of specimen under the action of chloride corrosion and impressed current with different chloride concentration, quantity of electric charge density and textile layers. Research has shown that compared to specimens in conventional environments and single chloride corrosion, when the specimens are subjected to chloride corrosion and impressed current, the failure mode of the specimens changes from balanced-reinforced failure to under-reinforced failure. The number of cracks on the outer surface of the specimens is significantly reduced, and the ultimate mid span deflection and load of the specimens are significantly reduced. When the chloride concentration remains constant, the bending performance of the specimen gradually decreases with the increase of electric charge density. In addition, increasing the number of textile layers in the specimen can significantly improve the bending performance of the specimen under chloride corrosion and impressed current. Finally, based on a series of basic assumptions and the analysis of the cross-sectional stress of the specimen when it was damaged, and combined with the experimental data in this paper, a calculation model that can effectively predict the four-point bending capacity of the specimen under different chloride concentrations and quantity of electric charge densities was obtained.
DOI
10.1016/j.conbuildmat.2025.141800
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Comments
Li, S., Qin, T., Yin, S., & Aslani, F. (2025). Bending and durability performance of TRC permanent formwork under chloride corrosion and impressed current. Construction and Building Materials, 484, 141800. https://doi.org/10.1016/j.conbuildmat.2025.141800