Investigation on Reactive Powder Concrete and Its Characteristic by Using Silica Fume

Nowadays concrete has become more complex, it is a composite material and versatile in nature, generally the cost of the material that it contains. As the demand of high strength concrete is increasing researchers are continuously trying to develop an ultra-high performance concrete for this they have to reduce the w/c ratio, the main aim of the engineers is to achieve higher compressive strength. Reactive powder concrete is one of the cement based concrete with a developing composite material, it is classified as the combination of different mineral admixture in it. Overall it has a high durability with a greater strength than normal concrete. The main aim of this study is to investigate the characteristics of reactive powder concrete after applying different dosages of mineral admixture and its behavior under different curing condition. Mix proportion is obtaining from past published literature based on trial and error method. First part contains, different mix proportion and its comparison on the basis of compressive and flexural strength under different curing condition, it contains 7 types of mix proportion and second part contains, substituting of cement by silica fume with constant dosage of crimped steel fiber, percentage of replacement is 0%, 10%, 20%, 30%, 35%, 40%. The test gives the positive results which are discussed below at the conclusion.