Compression behavior of cylinder reinforced with aramid fiber reinforced polymer

Abstract

Reinforced Concrete (RC) is a wonderful conglomerate material by the help of which, a structure or any structural element attains both compressive and tensile strength mesmerizingly. But due to different structural distresses and natural calamities, concrete structures loosen their strength on age which is a recent problem observed in old existing structures. Retrofitting of structures from these distresses and sensitive earthquakes became an essential constructional activity now a day for both concrete and steel structures as well. Results of the past experimental studies in this field showed a great positive impact in retrofitting of structures by using the Fiber Reinforced Polymers (FRPs). Owing to have a lot of drawbacks in the conventional methods of retrofication of structures, the technology offered by FRP techniques freshly became a new trend. This paper broaches an experimental study on RC cylindrical members confined with Aramid Fiber Reinforced Polymer (AFRP) and its effect on strengthening. In this experimental research, entirely twelve RC cylinders were prepared for testing to undergo the whole investigation including both un-strengthened and strengthened specimens. The conclusions articulated from the number of experiments acknowledged that, the load bearing capacity of the cylindrical specimens increased after the application of AFRP and also an exceptional interment of AFRP fabrics was observed. After the experimental inspections, the results obtained were correlated with the un-strengthened specimens and later the properties of the members were studied by plotting load–deflection curves, load-stiffness curves and axial stress–strain curves.