Axial compression properties of basalt fiber reinforced polymer-polyvinyl chloride composite reinforced fiber recycled concrete short columns

doi:10.19936/j.cnki.2096-8000.20231128.008

Abstract

Abstract: In order to study the axial compression performance of fiber-recycled concrete short columns under different restraint conditions, 45 recycled concrete short columns were studied in static axial compression tests. The influence of the polyvinyl chloride (PVC) pipe, the number of basalt fiber reinforced polymer (BFRP) sheet layers, and the composite reinforcement of BFRP sheet-PVC pipe on its uniaxial axial compression performance were discussed. The results show that: the bearing capacity, ultimate strain, and ductility of specimens are all improved as the number of BFRP layers is raised. BFRP-PVC reinforcement specimens, when coupled with the benefits of various materials, not only enhance concrete’s compressive strength but also solve the problem of brittle failure to a certain extent, and has broad application prospects. In addition, the ultimate stress model and ultimate strain model formulas are established, and the calculated values are in good agreement with the test values, providing a certain theoretical basis for future engineering applications.

Key words: BFRP, fiber recycled concrete, PVC, axial compression performance, toughness, stress-strain model, composites

CLC Number:

TB332

ZHANG Zhenlei. Axial compression properties of basalt fiber reinforced polymer-polyvinyl chloride composite reinforced fiber recycled concrete short columns[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(11): 58-69.

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