Analytical Assessment of Bond Resistance and Failure Modes of Post-Installed Bundled GFRP bars in Concrete

Glass Fiber Reinforced Polymer (GFRP) bars have become increasingly important in civil engineering due to their exceptional resistance to corrosion, high strength-to-weight ratio, and durability when compared to traditional steel reinforcement. This has led to widespread adoption, particularly for the rehabilitation and strengthening of existing structures. Previous research has explored the mechanical performance and bond behavior of single, cast-in, and post-installed GFRP bars, providing valuable insights into how factors such as embedment length, bar diameter, and adhesive formulation affect anchorage capacity and structural integrity.
Much of the literature, however, remains focused on single-bar scenarios or post-installed steel bars; studies involving bundled post-installed GFRP bars are rare, despite these systems being increasingly applied in real retrofit projects where space or design requirements necessitate bar bundling.
The main goal of this research is to improve the analytical understanding of bond resistance and failure modes in post-installed bundled GFRP (Glass Fiber Reinforced Polymer) bars for concrete retrofit applications. The work is the central focus of my B.Eng. thesis and aims to connect experimental findings with finite element (FE) simulations to help develop practical recommendations for future design and safer construction practices.

Faculty Supervisor:

Khaled Galal

Student:

Partner:

Institute Of Technology Of Cambodia

Discipline:

Engineering

Sector:

Construction; Transportation (excluding aerospace); Sustainability and the Environment

University:

Concordia University

Program: