Effect of Silica Fumes on Concrete Properties AndIts Advantages

Cement is the most important building material used in the construction industry. But manufacturing of cements have its own hazardous result like emitting greenhouse gases which is the leading factor for global warming. So the aim is to find out various partial supplements for cement to achieve a sustainable development and Silica fume is one of them. Concrete is the mixture of cement, sand, coarse aggregate and water mixed in proportion. The Ordinary Portland cement is partially replaced by silica fumes in order to attain a sustainable development. The main objective of this research is to find out optimum replacement percentage of OPC- 43 grade to achieve the considerable strength. In the research the silica fumes replaces the OPC- 43 grade from 0 % to 20 % at interval of 5 % and the various properties of concrete is tested. The compressive strength and flexural strength is measured. In addition to this the water absorption and the cube density were also calculated and the results are compared with conventional concrete.