Durability and High-performance, the two most desirable properties of concrete, are always important for sustainable infrastructure. After the invention of concrete, several steps have been taken to improve their quality and performance. Cement, the key ingredient of concrete, has shaped much of our infrastructure but produces a huge amount of carbon footprint. A huge amount of carbon is being emitted and becoming a major cause of global warming by dint of the Cement Industry. Besides, several pozzolanic by-products producing from industries can have a detrimental effect on the environment. But, effective and optimum use of these by-products in lieu of cement may help to minimize the carbon emission on the environment. Microsilica or Silica fume, an industrial by-product from the silicon and ferrosilicon alloy industry, has the significant ability to replace cement partially in the concrete &improve the mechanical properties and durability as well. The extremely fine particles of microsilica (<1µm) act as a filler that can fit into space among cement particles. Because of its cementitious property, a partial replacement of cement with microsilica not only decreases the use of cement but also improves the mechanical properties of concrete. From various researches, it is ensured that the use of microsilica improves the strength of concrete and decreases the porosity. This paper represents the critical literature review on the partial use of microsilica in concrete and the potential outcomes of microsilica induced concrete.
Authors: Rahman, M. A., Zawad, M. F. S., Priyom, S. N.
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