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Generally it is a known fact that concrete is the main material used in engineering projects for all the important works. This material has high compressive strength but it is weak in tension. To rectify this problem a smart material, namely Engineered Cementitious Composite commonly known as bendable concrete was introduced. This research emphasizes the influence of marble powder as a binder in engineered cementitious composites. Composites containing different levels of marble powder with partial replacement of ordinary Portland cement by 5%, 10%, 15%, and 20% are examined. To determine the effect of PVA fibers in ECC and to find the compressive strength, the matrix was produced and tested by a non-destructive test such as Ultrasonic pulse velocity test. The microstructure analysis and the chemical composition of the matrix were determined by scanning electron microscopy and X-ray diffraction test. The result showed that velocity obtained for the concrete cubes comes in the range of 3.5 to 4.5 km/Sec. This indicates that the quality of concrete is good and can be used for construction purposes. An effort has been taken to analyze the micro level formation of chemical compounds by scanning electron microscope (SEM) and X-ray diffraction (XRD).

Effect of Marble Powder and PVA Fibres on the Strength and Microstructure of Engineered Cementitious Composite by using Non-Destructive Test