Experimental Study on Toughness Characteristics of Concrete Inclusive of Steel and Glass Fiber

Concrete has been used in the various forms of structures all over the world from last two decades. The development of concrete has carried around the major essential need for essences of chemical as well as mineral for the improvement in the act of concrete. The usage of different types of fibers and their orientation in matrix have shown the positive response among the researchers. In this study the performance of fiber reinforced concrete (FRC) beams under two-point loading system is discussed and comparative studies were made with normal mix concrete. The mineral admixtures used in this study are steel fibers and glass fibers. In this study, we are casting the cubes for 3, 7, 28 days and beams only for 28days. The percentage addition by volume of concrete for mineral admixtures used is 0.5% and 1%. We are going to compare the results of compressive as well as flexural strength to normal concrete through different (0.5 and 1) percentages. The experimental study on normal strength concrete grade for 0.5% and 1% were also prepared respectively. Rebound hammer tests were conducted to assess the quality of concrete. Test results presented that the adding of suitable fraction volume of steel and glass fiber can improve the mechanical properties of the self-compacting concrete (SCC) and at the same time the flowing and passing abilities still within the accepted limits. In addition, incorporation of glass fibers had increased the ductility of self-compacting concrete. NDT tests discovered inclusion of fibers improves the surface hardness, homogeneity and quality of concrete.