PSI - Issue 78

Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 78 (2026) 41–48

© 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers Keywords: FRP; Bond; shear-lap tests; bioleaching Abstract Fiber-reinforced strengthening systems, whether based on fiber-reinforced polymer (FRP) composites or fabric-reinforced cementitious matrices (FRCM/TRM), are extensively used to improve the load-carrying capacity and ductility of concrete and masonry elements. As part of the SAFER-REBUILT project (“Sustainable Approaches for Earthquake-Resistant Rehabilitation Solutions for the Built Environment”), funded by the University of Bari Aldo Moro, this paper reports preliminary numerical and experimental findings focused on two interconnected goals. First, a finite-element framework is developed and validated to simulate cyclic bond degradation of FRP strengthening systems applied to concrete or masonry samples under repeated load–unload cycles. Second, an eco-efficient recycling strategy is assessed experimentally through a novel bioleaching and anaerobic-digestion process for the recovery and disposal of end-of-life FRP materials detached from their substrates. By coupling predictive bond-deterioration models with sustainable recycling techniques, this study establishes a holistic methodology to guide both the design of FRP retrofits and the environmentally responsible management of their lifecycle. XX ANIDIS Conference Cyclic bond behavior and end‑of‑life bio‑recycling of FRP strengthening systems Francesco Bianco a,b , Ernesto Grande a,b *, Maura Imbimbo a,b , Marco Race a,b , Valentina Tomei a,b , Mehmet Yiğitbaş a,b a University of Cassino and Southern Lazio, Department of Civil and Mechanical Engineering (DiCEM), Cassino (FR) – Italy b European University of Technology - European Union, Cassino (FR) – Italy

* Corresponding author. Ernesto Grande; Tel.: +3907762993478; fax: -. E-mail address: e.grande@unicas.it

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers 10.1016/j.prostr.2025.12.006