Open AccessStudy on Graphene-modified FRP Bars Used in the Process of Construction Health Management
Author(s) -
Xia Huang,
Jiahui Zhang
Publication year - 2021
Publication title -
frontiers in business, economics and management
Language(s) - English
Resource type - Journals
ISSN - 2766-824X
DOI - 10.54097/fbem.v2i2.173
Subject(s) - graphene , piezoresistive effect , fibre reinforced plastic , epoxy , bar (unit) , materials science , structural health monitoring , structural engineering , composite material , computer science , nanotechnology , engineering , geology , oceanography
The distributed long-gauge optical sensor on fiber reinforced polymer (FRP) bar cannot be manufactured through integrated production in current situation, which is hard for construction management. On the other hand, the point-sensing technology of the self-sensing bar will cause deviations in structural health monitoring (SHM). To solve these issues, applying the graphene/epoxy on FRP members is a feasible method for the piezoresistive characteristics of graphene. In this paper, basalt FRP (BFRP) bars with graphene/epoxy film were tested under repeated and cyclic loads and the resistance was measured at the same time until they were broken down. The results suggested that the test pieces can maintain stable sensing performance under repeated and cyclic loads. These facts indicated that the graphene-modified BFRP bars can well reflect the stress condition of the structural member within a safe range and can maintain stable self-sensing performance in the construction health management.