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Abstract
Reinforced cement concrete is the concrete with certain percentage of steel reinforcement embedded in it. This reinforcement is provided mainly to take care of the tensile stresses developed in the member. Reinforcement also limits the size of cracks in concrete due to shrinkage and temperature variation. Splicing of reinforcement bars in R.C members since the manufacturing length of reinforcement bar is 12m only in the market does not suit always to the exact dimensions of the members. The common types of splices adopted are lap splice and welded splice. The lapped joints are not always an appropriate means of connecting reinforcing bars. The use of laps can be time consuming in terms of design and installation and can lead to greater congestion within the R.C member because of the increased amount of rebar used. The cost of reinforcement also increased. The cost of reinforcement can be reduced and increase the load carrying capacity of RCC beam by using coupler to join the end of reinforcement. The investigation reported in this paper was carried out the behavior of splicing of reinforcement by bar coupler in beam. Test the flexural strength of M25 grade coupler reinforced concrete beam. The mix proportions of M25 grade concrete are designed by using Indian standard method and Fe 415 grade steels are used. Two numbers of RC beams casted (conventional lap and coupler reinforcement) for flexural strength test. The results showed that comparison of the flexural strength of conventional lap RC beam and coupler reinforced beam and analysis of cost of reinforcement. Comparison between conventional RC beam and bar coupler used RC beam. Tensile strength of coupler used reinforcement bar. Ultimate load carrying capacity of conventional RC beam. Ultimate load carrying capacity of bar coupler used RC beam. Are analyzed in phase-II project work