Research on Interfacial Bonding Performance Between Geopolymer Concrete and GFRP Bars Based on Beam Test

BI Chaohao; LAI Huaming; ZHANG Gengbin; YAN Tianyou; HE Rui; XIAO Shuhua; LIU Run'an; ZHUO Kexian; CAI Peide; GUO Yongchang

doi:10.3724/j.gyjzG23051401

Volume 54 Issue 6

Jun. 2024

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2024 > 54(6): 46-53

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BI Chaohao, LAI Huaming, ZHANG Gengbin, YAN Tianyou, HE Rui, XIAO Shuhua, LIU Run'an, ZHUO Kexian, CAI Peide, GUO Yongchang. Research on Interfacial Bonding Performance Between Geopolymer Concrete and GFRP Bars Based on Beam Test[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(6): 46-53. doi: 10.3724/j.gyjzG23051401

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Research on Interfacial Bonding Performance Between Geopolymer Concrete and GFRP Bars Based on Beam Test

doi: 10.3724/j.gyjzG23051401

1. Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Guangzhou 510000, China;
2. School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510000, China

Received Date: 2023-05-14
Available Online: 2024-06-24

Abstract

Abstract

In the context of the "dual-carbon goals" strategy, the use of green and low-carbon geopolymer concrete instead of high-carbon emission Portland cement concrete is currently a hot research topic. This paper focused on fly ash-based geopolymer concrete and conducted a beam test to study the interfacial bonding performance between geopolymer concrete and glass fiber reinforced polymer (GFRP) bas under bending and tensile loads. The influence of different concrete strengths or types on the interfacial bonding performance between geopolymer concrete and GFRP bars was determined. The results showed that due to the difference in mechanical properties between geopolymer concrete and Portland cement concrete, although they showed similar failure modes in the tests with GFRP bars, the failure mechanism at the interface varied with different concrete strengths, and the bonding stiffness and strength also changed accordingly. Finally, the XUE model and Bimodal model were modified for shape factor, and a bond-slip constitutive model suitable for the interface between geopolymer concrete and GFRP bars was established through comparative analysis.
- geopolymer concrete,
- GFRP bars,
- beam test,
- bond-slip,
- green and low-carbon

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References(18)

References

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