Nanoscience to nanotechnology for civil engineering: proof of concepts

Conventional concrete improved by applying nanotechnology aims at developing a novel, smart, eco- and environment- friendly construction material towards the green structure. In today's life, though utilization of cement based materials plays a vital role in the infrastructure development, it is polluting the environment by emitting CO2. Based on this view, researchers have been pursuing to evolve new or alternate material towards a green and sustainable solution. This paper presents the possible role of nanotechnology for the construction applications. It also discusses the application of nanotechnology in the area of cement based materials, their composites. Further, the mechano-chemical activation process of cement based materials and their formation using nano based organo-mineral is also presented in brief. It has been observed that the inclusion of nano particles would improve the toughness, shear, tensile and flexural strength of cement based materials. Further, it is observed that the better understanding and engineering of complex structure of cement-based material at nano-level will definitely result in a new generation of construction materials with enhanced properties, viz., strength and durability.

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