Retrofitting of RC Beams Using Polymer Ferrocement Laminates - Laboratory Model Study and Finite Element Analysis

摘要

The present study is an attempt for strengthening the reinforced concrete beam damaged due to overloading using polymer ferrocement laminates which were directly glued into the cracked tension face of the beam by epoxy adhesives. Beams of size 3200 mm length, 125 mm width and 250 mm depth were casted and tested under two-point loading condition. The beams were subjected to overloading by applying 70% ultimate load for four beams and 80% ultimate load for two beams. The beams subjected to collapse condition were strengthened by polymer ferrocement laminates with two different volume fractions of 4.94 and 7.41%. The theoretical and experimental moment-curvature behaviour observed in the case of control specimens were compared with polymer ferrocement laminate beams, and the results were validated using ANSYS software.