Eco-concretes (ECs), i.e., concrete mixes with low clinker content, contribute to a reduction in CO₂ emissions in construction, which is critical for mitigating global warming. The lower alkalinity of ECs, however, necessitates corrosion-resistant reinforcements such as glass fibre-reinforced plastic (GFRP). In this study, pull-out (PO) and beam-end (BE) tests were performed on GFRP rebars embedded in EC to determine the general bond behaviour and the influence of bond length and concrete cover. The tests showed that with increasing rebar diameters and bond lengths the bond strength decreased, while bond stiffness varied. The required anchoring length of the rebars was found to be at approximately 40 times the rebar diameter.