The aim of this experimental investigation is to study the effect of using externally bonded and bolted Aluminum Alloy (AA) plates on the strength, stiffness, ductility and failure modes of Reinforced Concrete (RC) beams. The test matrix of this study consisted of three RC beams including one unstrengthened control beam and the other two beams were externally strengthened with AA plates using two types of strengthening techniques – bonding only and bolting as anchorage in addition to bonding. The specimens were tested under monotonic loading until failure. The results indicated that the beam with bonded AA plates showed a 32% increase in load capacity and 45% increase in deflection compared to the control beam, whereas the beam with bolted and bonded AA plates showed a 24% increase in load capacity and 84% increase in deflection compared to the control beam. It was concluded that the combination of bolting and bonding, as an alternative anchorage technique, greatly enhanced the ductility in the strengthened specimen and reduced the debonded length of the AA plate while scarified a relatively small reduction in the beam’s capacity as a trading off.