Experimental Study On Flexural Behavior Of Reinforced Concrete Beams Strengthened With Ferrocement

Ferrocement is a type of thin layer to reinforce concrete structure, where usually hydraulic cement is reinforced with layers of continuous and relatively small diameter steel wire mesh. The mesh can be made of metallic materials or other suitable materials. Studies have shown that ferrocement have emerged as a viable, cost-effective method in strengthening R C members.The thesis deals with the response of ferrocement with wire meshes as flexural strengthening material for reinforced concrete beams. The experiment of the study involved testing of 11RC beams strengthened in flexure and 1 control specimen without strengthened. The experiment of the study includes 2 part one is the study of strengthening RC beams with ferrocement considering secondary load The other is the study of the limit failure of strengthening RC beams with ferrocement. The strengthening results of reinforced with U-shape ferrocement have been analyzed Mid-span deflection, crack width and strains in the steel were measured during the course of the test And the performance of the tested beams and modes of failure are presented and discussed in this thesis. The test results confirm that ferrocement can be used to significantly increase the flexural capacity, raise crack-resisting capacity and improve the bending stiffness of RC beam.In the theoretical part of the thesis, the analytical model based on a strain compatibility and equilibrium of internal forces, analysis all specimens that consider secondary load and provide the equations of yield load, ultimate load and vertical deflectioa In the analysis of limit tailure, the equations of the minimal and maximal ratio of reinforcement with ferrocement under once stress are provided. And the study finds that traditional analytical model can predict accurately the behavior of the specimens.At last, the strengthening technology using ferrocement was presented...