Published Paper Details:

This Abstract is to find the experimental studies that conducted to assess mechanical characteristics of the concrete mix in which lithium carbonate, carbon fiber and polypropylene fiber is added in various volume proportions in few of the different mixtures. Tests are tested to know Performance of new concrete. Breaking Tensile strength, or tensile strength of splitting bending strength, and the modulus of elasticity is found at end of the process. The test findings show that the addition significantly improves the strength qualities of plain concrete. of carbon fibers and polypropylene fibers. as additives and lithium carbonate shows that it will decreases the setting time of concrete, and can be efficiently utilized in structural concrete. Unless the fibre extent fraction is so high that the amount of void material content becomes excessively high, the effect of carbon fibre and polypropylene fibre addition at concrete dwellings will increase with fibre quantity fraction. Furthermore, the flexibility of the combination reduces as the fibre content material increases. Furthermore, the value will rise as the fibre content increases. As a result, a low fibre fraction is preferred as an alternative. The optimal concentration is 0.2 vol.% lithium carbonate. Fibre content as little as 0.25 vol.% works for carbon fibres, and 0.5 vol.% is efficient for polypropylene fibre, while fibre contents above 1 vol.% are not uncommon. In the work of experimental part, High Strength concrete (HSC) was prepared using intensive mixer. Carbon Fiber in volume fraction of 0.2 vol.% in every mix0.25%, 0.50%, and 0.75 volume fractions of polypropylene fibre, % & 0.1% and lithium carbonate in volume fraction of 0.1%, 0.2%, 0.3% & 0.4. Results of compressive and bending test proved an increase of strength value in the case of second mix of 0.2%LC, 0,2%CF & 0.5%PPF. The principal parameters considered in the study were the volume fractions of fibre and properties of the concrete.