Influence of Nano Silica on Mechanical Properties of Concrete.

      Аннотация: The nano- material like Nano silica had achieved sustainability goals in civil engineering when compared with other Nano- materials. Nano-silica is preferred over other Nano-particles because it has a high capability of improving microstructure of cement-based products like paste, mortar and concrete. Cement composites with Nano-silica are suitable in order to be used in several applications in which early compressive strength should be taken into account; these applications include concrete roof tiles, masonry blocks, and high strength mortars.They are also important for applications in which flexural strength should be greatly improved, notably in cases where unreinforced cement composites are adopted, for example airport concrete pavements and roads in order to distribute concentrated loads securely in extensive areas.Use of even small amount of Nano-silica can improve different properties of cement and concretes and therefore, it can be considered a very important material especially in civil engineering. Therefore, the present study aimed at presenting a civil engineering.

Ключевые слова: nano silica, Concrete, mechanical properties