Performance of Silica Fume as a partial Replacement on Cement Concrete Strength

With many uses, concrete is one of the most significant composite building materials. Currently, one of the biggest challenges is producing durable, reasonably priced concrete. Different qualities of concrete may be achieved by adding a variety of extra-cementitious components. Many different methods have been created these days to alter the strength and durability of concrete. The reduction of waste produced by different businesses that would be harmful to the environment is another goal of this project. High-performance concrete is the preferred option for significant projects like tall skyscrapers. We may also incorporate some of the wastes produced by other industries, such as fly ash, GGBs, copper slag, silica fume, etc., to enhance the performance of concrete. Included materials may improve the property and raise its final strength and durability. Initially, we need to determine the ideal mix design from which we may adjust the parts to create the ideal mixer with the appropriate amount of concrete and added silica fume. Based on the collected data, we may conclude that 15% is a suitable percentage of silica fume since the current study demonstrates a significant improvement by using the proper amount of silica fume in the analysis. The OPC strength of the concrete was demonstrated to increase with a dosage of 15% replacement and to gradually decline beyond this limit. The combination of concrete gets less workable the more silica fume is added. A few additives are also used to enhance the performance and workability. Further admixtures were also used to enhance the consistency.