Effect of Partial Replacement of Cement with Silica fume on the Strength and Durability Characteristics of High Performance Concrete using Silica Fume and Super Plasticizer

The cement content of conventional high strength concrete is generally high which often leads to higher shrinkage and greater evolution of heat of hydration. In special situations a very high compressive strength of concrete is necessary together with sustainability to aggressive environments. Very few studies have been reported in India on the use of silica fume (SF) for development of high performance concrete (HPC). In order to make a quantitative assessment of different cement replacement levels with SF on the strength and durability properties for M90 and M100 grades of HPC trial mixes and to arrive at the optimum level of replacement of cement with SF, investigations were taken. This paper reports on the performance of HPC trial mixes having different replacement levels of cement with SF. The strength and durability characteristics of these mixes are compared with the mixes without SF. Compressive strengths of90MPa and 100MPa at 28 days were obtained by using 10 percent replacement of cement with SF.