A COMPARATIVE STUDY OF CONCRETE WITH DIFFERENT CEMENTITIOUS MATERIALS (GGBS & SILICA FUME)

Concrete is a most versatile construction material because it can be designed to withstand the hardest environment while taking on the most inspirational forms. Engineers are continually pushing the limits to improve its performance with the help of innovative mineral admixture. Nowadays, most concrete mixture contains different cementitious material which forms part of the cementitious component. The main benefits of this are their ability to replace certain amount of cement and still able to display cementitious property, thus reducing the cost of using Portland cement and increasing concrete properties. The different cementitious materials like Ground Granulated Blast Furnace Slag (GGBS), Silica Fume, are some of the cementitious materials which can be used in concrete as cement. In this project, our study is mainly confined to evaluation of changes in compressive, splitting tensile and flexural strength test in four different mixes of M25 Grade namely i) Normal Concrete, ii) Concrete made by 10% replacement of cement by GGBS and Silica Fume iii) Concrete made by 15% replacement of cement by GGBS and Silica Fume iv) Concrete made by 20% replacement of cement by GGBS and Silica Fume. Compressive test, splitting test, flexural test will be conducted on the prepared cubes, cylinders &prisms. The tests were conducted for 7days and 28days of curing.