Abstract: Strengthening of reinforced concrete structure improves the load carrying capacity and extends their service life. To extend the life span of damaged RC beam, strengthening is required and this can be effectively achieved using Ferro cement. Ferro cement is a type of thin wall reinforced concrete commonly constructed of hydraulic cement mortar reinforced with closely spaced layers of continuous and relatively small size wire mesh. Ferro cement is a construction material that proved to have superior qualities of crack control impact resistance. In recent years, the use of Ferro cement laminates has become a subject of great interest in structural engineering community. The mesh may be made of metallic or other suitable materials. Ferro cement is a composite material of woven mesh and weld mesh embedded in mortal with various volume fractions. The main objectives of this research work are to study the flexural behavior of per damager RC beam with varies Ferro cement configuration under two-point loading, to compare the experimental results of strengthened pre damaged RC beam for the parameters likes first crack load, ultimate load carrying capacity, stiffness and energy dissipation. In the current research, an experimental implementation will be done by casting and testing of beams. Five reinforced concrete beam of size 100 x 150 x 1100 mm are cast. Out of which four beams were pre damaged under load at one third with 60% of point ultimate load of the beam. The strengthen of damaged beams were with Ferro cement laminates constitutes chicken mesh and weld mesh with 2 and 3 layers were made. An analytical model was created with ANSYS. Further, the experiment result was compared with analytical results.
Keywords: Cement, Coarse aggregate, Fine aggregate, Strengthening of RC beam.
| DOI: 10.17148/IARJSET.2020.7715