Title: Effect of Recycled Concrete on the Flexural Behavior of Concrete-Filled FRP Tubes

Author(s): Heeyoung Lee, Hoon Jang and Wonseok Chung

Publication: IJCSM

Volume: 13

Issue:

Appears on pages(s):

Keywords: concrete-filled, FRP tube, recycled coarse aggregate, FEA

DOI: 10.1186/s40069-018-0318-8

Date: 1/31/2019

Abstract:
This paper presents the results of short span concrete-filled fiber reinforced polymer (FRP) tubes filled with different recycled coarse aggregate (RCA) replacement ratios. The mechanical response of recycled concrete-filled FRP tubes (RCFFTs) under flexural load was examined to investigate the influence of RCA as an in-filled material. The experi-mental results were compared with the simplified finite element model to estimate the failure behavior of the test units. RCFFTs with a 100% RCA replacement ratio showed a similar bending behavior compared to natural aggregate concrete-filled FRP tubes. The flexural behavior of 100% recycled aggregate concrete could be complemented and utilized because of the high strength and high stiffness of the FRPs.