Shape Memory Alloys (SMAs) have emerged as promising materials for structural strengthening due to their unique ability to generate recovery stresses and mitigate cracks in concrete elements. This study investigates the axial compressive performance of concrete cylinders confined with iron-based SMA (Fe-SMA) strips using two different mechanical anchorage systems: steel angle plates and drilled-in-bolts. Nine 150 mm diameter concrete cylinders (300 mm height) were tested under uniaxial compression-three served as unconfined controls (C1, C2, C3), three were confined with Fe-SMA strips anchored by angle plates (AP1, AP2, AP3), and three were confined with Fe-SMA strips anchored by drilled bolt connections (DB1, DB2, DB3). The results show that SMA confinement significantly increased the load-carrying capacity of the concrete and delayed crack propagation compared to the control specimens. The angle plate anchorage achieved the highest peak load (744.1 kN, corresponding to a compressive stress of 42.10 MPa) but exhibited the least post-peak ductility. In contrast, the drilled bolt anchorage provided a more balanced performance, offering a moderate strength increase (peak load 513.7 kN) along with substantially greater deformation capacity. In terms of failure modes, the unconfined concrete cylinders failed abruptly with diagonal shear cracks and spalling, whereas the SMA-confined specimens showed more controlled crack development and sustained confinement action until strip rupture. The findings highlight the potential of Fe-SMA strips as an effective and durable strengthening solution for concrete under compressive loading, especially when using purely mechanical anchorages without adhesives. The study contributes to the growing body of knowledge on Fe-SMA applications for structural performance enhancement in civil engineering.