Pullout behavior of recycled macro fibers in the cementitious matrix: Analytical model and experimental validation

Yuan，Hong1,2,3; Fan，Y. C.1; You，X. M.1; Fu，Bing1,2; Zou，Q. Q.4,5

2024-01-15

10.1016/j.compstruct.2023.117690

Composite Structures   影响因子和分区

0263-8223

A novel mechanical recycling method has been recently developed in the authors’ group for processing waste glass fiber-reinforced polymer (GFRP) composites into macro fibers, which are then incorporated into concrete to produce green fiber-reinforced concrete (FRC). The present study has been conducted for facilitating the characterization of the tensile properties of macro fiber reinforced concrete (MFRC). A trilinear bond-slip model based on the shear-lag theory has first been refined by introducing a slip coefficient to consider different slip behaviors at the final pullout stages. Such a refined trilinear bond-slip model is suitable for describing the bond-slip behavior of the recycled macro fibers embedded in the cementitious matrix. The bond parameters are obtained through an inverse analysis, in which an improved particle swarm optimization algorithm (PSO) is used. The predicted force-end slip curves are compared with the pullout test results, and a good agreement is observed counterparts with the integral absolute error (IAE) ranging from 3.05% to 5.52%, demonstrating the feasibility of the proposed analytical model. A parametric study is finally conducted to examine the sensitivity of different parameters including the fiber geometries and bond properties on the pullout behavior of the macro fibers.

SCI ; EI

英语

其他

MATERIALS SCIENCE

2-s2.0-85182199126

Scopus

1.School of Mechanics and Construction Engineering,Jinan University,Guangzhou,510632,China
2.MOE Key Lab of Disaster Forecast and Control in Engineering,Jinan University,Guangzhou,510632,China
3.School of Architectural Engineering,Guangzhou Institute of Science and Technology,Guangzhou,510632,China
4.School of Astronautics,Harbin Institute of Technology,Harbin,150001,China
5.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Yuan，Hong,Fan，Y. C.,You，X. M.,et al. Pullout behavior of recycled macro fibers in the cementitious matrix: Analytical model and experimental validation[J]. Composite Structures,2024,328.

Yuan，Hong,Fan，Y. C.,You，X. M.,Fu，Bing,&Zou，Q. Q..(2024).Pullout behavior of recycled macro fibers in the cementitious matrix: Analytical model and experimental validation.Composite Structures,328.

Yuan，Hong,et al."Pullout behavior of recycled macro fibers in the cementitious matrix: Analytical model and experimental validation".Composite Structures 328(2024).