EXPERIMENTAL INVESTIGATION ON CONCRETE CONTAINING NANO-METAKAOLIN

Nanotechnology is one of the most promising areas of science. The concept of use of nano particles in concrete is one of the new revolutionary steps in concrete technology.In this paper, an attempt has been made to understand the influence of Nano- Metakaolin as a partial replacement substance for cement in concrete. An experimental investigation has been carried out to determine the compressive strength, split tensile strength and modulus of elasticity of normal cement concrete and concrete containing Nano- Metakaolin partially replacing cement at various percentages. The mixes were designed as per IS 10262- 2009. The cement was replaced by Nano- Metakaolin at various percentages (2%, 4%, 6%, 8%, 10%, 12%, 14%, 16%, 18% and 20%) for M20, M30, M40 and M50 grades. A comparison between the cost of Normal Concrete and concrete with Nano-Metakaolin is also made. It is found that partial replacement of cement with Nano-Metakaolin has a greater influence on the strength of concrete. The optimum percentage at which cement can be replaced with Nano-Metakaolin is found to be 10%.