Experimental Investigation of Axial Behavior of Strengthened Reinforced Concrete Columns Using Polyurethane-Cement(PUC)

Abstract

Poly-Urethane-Cement(PUC) is a new type of composite material which can be used in many construction area in recent years. This paper presents an experimental study of the axial behavior of strengthened reinforced-concrete (RC) columns using PUC. 5 concrete column specimens were constructed, strengthened and tested to failure under compressive axial load. The test results show that PUC can provide effective confinement for the concrete core and significantly increase the axial strength and deformation capacity of the RC columns. The ultimate load carry capacity of the strengthening columns is governed by failure of the PUC wrap.