Does Metakaoline Replacement Adversely Affect the Cyclic Behavior of Non-Strengthened and Strengthened RC Beams: An Experimental Investigation

The need to reduce carbon emissions has recently become prevalent in light of concerns related climate change. Since the cement industry causes approximately 8% global CO2 emissions, it might be an urgent necessity include replacement materials within concrete industry. An important question arises about if such negatively affects cyclic or seismic behavior reinforced (RC) elements. This research presents experimental investigation effect using different percentages metakaolin on monotonic and RC beams. investigated parameters flexural strength, ductility energy dissipation capacity tested current paper also aims study CFRP-strengthening technique with 15% beams under same loading protocols. results reveal that can used as a partial substitute for up 20% without negative both For loading, percentage did not affect ductility; rather, provided some improvement.