Influence of Nano Silica as Additive in Concrete
Pragadeeshwaran B1, Sattainathan Sharma A2

1Pragadeeshwaran.B, pursuing M.E. in Structural Engineering from SRM Valliammai Engineering College, Kattan kulathur, Tamil Nadu, India.
2Mr. Sattai nathan Sharma.A Assistant Professor, Department of Civil Engineering, SRM Valliammai Engineering College, Kattan kulathur, Tamil Nadu, India.

Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 919-922 | Volume-8 Issue-8, June 2019 | Retrieval Number: G5553058719/19©BEIESP
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Abstract: Nanotechnology provides an impact on construction materials with new properties and produces materials with better performance. The use of nano-silica as one of the innovation in concrete technology has developed very rapidly. Some researches has proved that usage of nano-silica resulted in crack free concrete towards sustainable construction and also resulted in reduced permeability due to the nano-filler effect and pozzalanic effect reactions. This experimental study is to evaluate the effects of nano-silica on Mechanical properties of concrete. Nanoparticles namely nano-silica are incorporated at different proportions by weight of the binder and is tested. Flexural specimens with the optimized dosage of nano silica are tested under half-cyclic loading condition followed by monotonic loading condition. Mechanical properties are determined such as compressive strength and flexural strength through testing the concrete specimens at 28 days in order to derive the influence of nano-silica in concrete. Scanning electron microscopy is utilized to study about the smaller scale structure of the concrete.
Keyword: Nano silica, Flexure, Cement hydration, SEM, EDS.
Scope of the Article: Properties and Mechanics of Concrete.