International Journal of Applied Research
Vol. 2, Issue 9, Part H (2016)
Utilisation of silica fume & steel slag in concrete as a partial replacement of cement & coarse aggregate
M Vindhya and Dr. T Suresh Babu
In This paper an evaluation of steel slag aggregate in concrete with and without adding silica fume in comparison with the conventional natural aggregate concrete. Hardened concrete consist of more than 70% aggregate due to the high demand in building construction and the increase of demand of the amount of material, suppliers and researchers are exploring the use of alternative materials which could decrease the usage of natural sources and save the environment. Steel slag was used as an aggregate replacement in conventional concrete mixes. Steel slag which is mainly consists of calcium carbonate is produced as a by-product during the oxidation process in steel industry. Steel slag was selected due to its characteristics, which are almost similar to conventional aggregates and the fact that it is easily obtainable as a by-product of the steel industry. As a result, utilization of steel slag will save natural resources and clean environment. Steel slag Particle packing analysis is made to match the grade of coarse aggregate which would decrease the cement requirement and increase the density of packing which would result in its improved performance in terms of strength and other parameters. Silica fume is a by-product of producing silicon metal or ferrosilicon alloys. One of the most beneficial uses for silica fume is usage in concrete. Because of its chemical and physical properties, it is a very reactive pozzolanic. Concrete containing silica fume can have very high strength and can be very durable. Silica fume is non-metallic and non-hazardous waste of industries. It is suitable for concrete mix and improves properties of concrete i.e. compressive strength etc. by experimental study of usage of steel slag and silica fume with replacement of coarse aggregate and silica fume made clear that it increases strength nearly twice the mix grade. the study of mechanical properties and silica ume gives the details of the behavior of the concrete during various tests
How to cite this article:
M Vindhya and Dr. T Suresh Babu. Utilisation of silica fume & steel slag in concrete as a partial replacement of cement & coarse aggregate. International Journal of Applied Research. 2016; 2(9): 566-578.