Experimental Study on Mechanical Properties of CNT Reinforced Concrete

Civil Engineering

Concrete is a well proportionate mixture of cement, fine aggregate, coarse aggregate and water. Concrete is strong in compression but week in tension. To avoid this disadvantage and to increase the strength of concrete we have to add some percentage fibers in concrete. Many researchers have work to improve tensile strength of concrete by adding different fibers (steel fibber, glass fibers, carbon fibers, natural fibers etc.) in different percentage in concrete. Researcher is work for new materials for improving the tensile strength. Now the work is going towards the nanotechnology for concrete. In this paper the previous work of researchers on nanotechnology is highlighted and mostly on carbon nanotubes. This study work on the methods of manufacturing the carbon nanotubes such as electric arc-discharge, laser ablation method and chemical vapour deposition. In this Project an attempt has been made to use carbon nanotubes in concrete with different percentage (0.015, 0.020, 0.030, and 0.040%) of weight of cement. This addition is done for studying the effect of addition of carbon nanotubes on various mechanical properties of concrete, like compressive strength, flexural strength, split tensile strength.

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