PERFORMANCE OF SILICA FUME AND FLY ASH AS PARTIAL REPLACEMENT OF CEMENT IN CONCRETE WITH POLYPROPYLENE FIBER.

Civil Engineering

Concrete is the world’s most versatile, durable and reliable construction material and because of its mould ability into any required structural form and shape due to its fluid behavior at early ages. Next to water, concrete is the most used material, which required large quantities of Portland cement. Ordinary Portland cement production is the second only to the automobile as the major generator of carbon dioxide, which polluted the atmosphere. In addition to that large amount energy was also consumed for the cement production. Hence, it is inevitable to find an alternative material to the existing most expensive, most resource consuming Portland cement. The objective of this research is to investigate the different properties of cement concrete containing fly ash and silica fume with polypropylene fiber. Content of fly ash will remain constant at 10% and silica fume will be differed by 10%,20%,30%,40% by replacement of equal weight of cement in concrete. Polypropylene fibers will be added by weight fraction of concrete. Analysis of concrete will be in fresh state as well in hardened state to evaluate different properties of concrete Compressive Strength and Split Tensile Strength by pond curing. Tests like Heat of Hydration and Durability of concrete is also to be carried out. In this research work the methodology of casting cubes of concrete will prepared and tested after 7 and 28 days (Durability 56 Days) will be adopted. The results will compare fly ash and silica fume with polypropylene fiber. Uses of such waste materials will not only depreciate the cost of construction but also contribute in safe disposal of waste materials.

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