Effect of Nano Silica and Nano Alumina in Ul-TRA High Performance Concrete

Abstract

Ultra-High Performance Concrete (UHPC) has been study for a considerable amount of time now. Past pains of improving the concrete performance products that mineral spices can greatly change the characteristics of concrete and give high strength and durable results. Many researchers have also give in to good strength. To take Ultra-High Performance Con-crete with better performance introduced nanosilica and nanoalumina into Uhpc. The prosper-ous output of Ultra-High Performance concrete (UHPC) depends upon its material compo-nents and mixing proportion which leads to dense and Comparatively extra homogeneous par-ticles pairing. The main objective of this study is to prepare the Ultra-high performance con-crete having good mechanical properties by applying the concept of particle packing. The par-ticle packing has a great influence on the properties of concrete by improving the density of structure. More is the packing of the materials lesser will be the voids. In this study mineral spices like nano silica, nano alumina, silica fume, quartz powder and steel fiber will be used and concrete will be evaluate for its various properties and ideal mix proportion will be fig-ured out. Nanosilica and Nano alumina is used as a filler material. The consistency of cement paste with nano silica is higher than that of silica fume. With the addition of Nanosilica into the concrete mix the compressive strength of concrete can be increased and it has a high dura-bility. The rises of Nano alumina indicate average increases into the compressive strength and sufficient increase on fire resistance properties of cement mortar. The water to binder ratio is also required to be lowered by the use of superplasticizer because higher water content leads to decrease in the strength of concrete. With the correct method and combining the above dis-cussed factors the concrete with Ultra high strengths can be achieved.