Effect of test setup on the fiber-to-mortar pull-out response in TRM composites: Experimental and analytical modeling

Dalalbashi, Ali; Ghiassi, Bahman; Oliveira, Daniel V.; Freitas, Ana

Abstract

Textile-reinforced mortars (TRM) have recently received significant attention for the externally bonded reinforcement (EBR) of masonry and reinforced concrete structures. The fiber-to-mortar bond, the TRM-to-substrate bond, and the mechanical properties of the TRM constituents have a fundamental role in the performance of this strengthening technique and therefore require special attention. Despite this importance, only few investigations are devoted to characterization of the single fiber-to-mortar bond response in these systems.
This paper, as an step towards addressing the fiber-to-mortar bond, presents a combined experimental and analytical investigation on the effect of test setup on the pull-out response and bond-slip laws in TRM composites. Three different pull-out test setups, consisting of one pull-pull and two pull-push configurations, are developed and investigated for characterization of the single fiber-to-mortar bond behavior. The experimental and analytical results are critically discussed and presented and bond-slip laws are extracted for each test setup.

Citation

Dalalbashi, A., Ghiassi, B., Oliveira, D. V., & Freitas, A. (2018). Effect of test setup on the fiber-to-mortar pull-out response in TRM composites: Experimental and analytical modeling. Composites Part B: Engineering, 143, 250-268. https://doi.org/10.1016/j.compositesb.2018.02.010

• Journal Article Type: Article
• Acceptance Date: Feb 5, 2018
• Online Publication Date: Feb 13, 2018
• Publication Date: Jun 15, 2018
• Deposit Date: May 15, 2018
• Publicly Available Date: Feb 14, 2019
• Journal: Composites Part B: Engineering
• Print ISSN: 1359-8368
• Electronic ISSN: 1359-8368
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 143
• Pages: 250-268
• DOI: https://doi.org/10.1016/j.compositesb.2018.02.010
• Public URL: https://nottingham-repository.worktribe.com/output/938423
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S1359836817343421