Experiment on basalt fabric reinforced polymer-fiber reinforced cementitious matrix tensile mechanical properties

doi:10.19936/j.cnki.2096-8000.20211028.006

Abstract

Abstract: The excellent mechanical behaviors of Basalt Fabric Reinforced Polymer-Fiber Reinforced Cementitious Matrix (referred as to BFRP-FRCM) composite layer are tensile strain hardening, multi cracking, excellent deformation ability and so on. This makes BFRP-FRCM composite layer as a kind of preferred construction materials for the structural repair or reinforcement. Therefore, this paper presents an experimental study on the significant variables on the mechanical properties of BFRP-FRCM composite layers, including the mixed fibers, FRCM matrix water/binder ratio and basalt mesh layers. Experimental results indicated that BFRP-FRCM composite layers exhibited remarkable tensile strain hardening effect when PVA and PE fibers were mixed, but the layer mixed with PP fibers exhibited tensile softening effect. The maximum ultimate tensile strain of BFRP-FRCM composite layer mixed with PE fibers can reach to 3.95%, which is much larger than that of the mortar materials. The optimal amount of fiber mesh in the composite layers was also presented.

Key words: BFRP, strain-harden, FRCM, deformation toughness

CLC Number:

TB332

LIAO Wei-zhang, WANG Jun-jie, WANG Qiu-wan. Experiment on basalt fabric reinforced polymer-fiber reinforced cementitious matrix tensile mechanical properties[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(10): 42-50.

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