Introduction
The engineers are searching for structural materials which have high strength with less weight and least cost. In general strong materials are relatively dense and light materials will have less strength. In order to achieve high strength with less weight it requires to combine two or more different materials to get composite materials. A large group of engineering materials have steadily increasing importance in Industrial application are compose of two or more distinct materials. The combination results in superior properties not exhibited by the individual materials. Such materials are called as composite materials. Many composite materials are composed of just two phases one is termed as matrix phase, which is continuous and surrounds the other phase often called the dispersed phase [1-4]. The matrix phase binds the
fibres together and acts as medium by which an externally applied stress is transmitted and distributed to the fibres. Only a very small portion of an applied load is sustained by the matrix phase and major portion is sustained by the fibers. The fibres are basically two types. They are Natural and Synthetic Fibres. Cotton, Jute and Sisal are some examples for Natural Fibres and Glass, Nylon and Carbon are some examples for Synthetic Fibres. The Natural fibres are renewable [5] and cheaper but their mechanical properties are much lower than the synthetic fibres. The synthetic fibres exhibit good mechanical properties but they are costlier and non renewable [6]. In present work to take advantage of both Natural and Synthetic fibres, they can be combined in the same matrix to produce hybrid composite and their impact and compressive properties are studied. [7-13]. The Chalk powder (additive) is