EXPERIMENTAL INVESTIGATION ON ENERGY DISPERSIVE ANALYSIS OF FIBER REINFORCED CONCRETE

Concrete structures are usually subjected to both static as a long term and dynamic as a short term loads. The impact resistance of plain concrete is low and that's mainly due to a fairly low energy dissipating features and inadequate tensile strength. To compensate for the weak tensile properties of the concrete the reinforced concrete is used and it has a better potential as a practicable structural material for such application under extreme loads such as impact. However, concrete is a developing material and the relevant studies towards the change and development of concrete which researchers have carried out to date reveals that the developed concrete improves the behavior of structural member more when compared to conventional concrete. Fiber Reinforced Concrete (FRC) material is a developed concrete that has been proposed to improve the tensile behavior of the concrete using fibers in the concrete mix. Synthetic Fiber Reinforced Concrete (SFRC) is popular FRC material that is being studied to improve the structural behavior of members under different load conditions. This study attempts is to use Synthetic fibers in the structure of concrete to obtain a composite with high tensile strength and ductility. However, a thorough understanding of the mechanical behavior of fiber-reinforced concrete requires knowledge of fiber cement interfaces at the nano scale. Scanning electron micros- copy (SEM) and energy-dispersive X-ray spectroscopy (EDX) analysis are used to obtain a better understanding of the C-S-H fiber (in cement chemistry notation, C = CaO, S SiO2, and H H2O) interfaces.