BFRP约束煤矸石混凝土轴压本构模型研究

doi:10.11896/cldb.24070132

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Abstract To establish a constitutive model for coal gangue concrete confined with basalt fiber reinforced polymer (BFRP), experiments were conducted to investigate the influence of the number of BFRP layers and concrete strength on the axial mechanical properties and constitutive relationships. The results show that the more BFRP layers there are, the greater the increase in ultimate compressive strength and ultimate axial strain. Additionally, the lower the strength of the gangue concrete, the better the BFRP confinement effect. The degree of BFRP confinement is found to be the main factor affecting the shape of the constitutive relationship curve. A constitutive model for coal gangue concrete confined with BFRP under different types of confinement (strong confinement and weak confinement) is established, and it is proved to have high accuracy and good applicability by the verified experiment.

Key words： coal gangue concrete BFRP constitutive model axial mechanical property

Published: 15 August 2025 Online: 2025-08-15

CLC number:

TU398

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	Articles by authors
	XIA Junwu
	ZHU Zhichun
	LIN Jundong
	HE Yuan
	YU Jun
	BAI Jianbiao

Cite this article:

XIA Junwu,ZHU Zhichun,LIN Jundong, et al. Study on the Axial Compression Constitutive Model of Coal Gangue Concrete Confined with BFRP[J]. Materials Reports, 2025, 39(16): 24070132-6.

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https://www.mater-rep.com/EN/10.11896/cldb.24070132 OR https://www.mater-rep.com/EN/Y2025/V39/I16/24070132

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