The Global Nano Silica Market is expected to reach USD 5.24 billion by 2025, growing at a CAGR of 7.8% during 2020-2026. The market is driven by factors like growing adoption in rubber and concrete application, cheap & abundant availability, rising coatings applications in the construction industry and growing concerns regarding environment and renewable resources.
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The concrete industry is a fast growing vertical which consumes maximum energy. It is also responsible for the man-made CO2 emissions on an annual basis. Although, there is a great demand to reduce the volume of cement used in the construction sector and hence there are certain alternatives that have employed to reduce the dependency on production of cement. For instance, flyash, silica fume and nano silica are some of the alternatives sought. Use of nanotechnology adds another dimension to the concrete industry.
Approach towards using nanosilica is highly effective in modifying the properties of concrete at micro levels owing to their small size. The use of nanosilica in concrete has resulted in tensile, compressive and flexural strength of concrete. Nano silica mixed cement generates nano-crystals of C-S-H gel post hydration. These nanocrystals can accommodate in the small pores of concrete, thereby improving the strength and permeability of concrete. At present, the use of nanomaterials is gaining a traction in the past few decades and have shown significant enhancement from industrial perspective. As an example, the use of nanotechnology in cement industry augments the life of the desired material attributing to accelerating effect, pozzolanic reaction, and minimal porosity.