Abstrato

An overview on the Influence of Nano Materials on Properties of Concrete

V.R.Rathi, Dr.C.D.Modhera

The Construction Industry is a major consumer of material and energy sources of India. Among all the materials used in construction, concrete, which is the most widely used, can have a significant impact. Meanwhile, nanotechnology is one of the most influential technologies in this century and it has significantly attracted the construction sector. Better understanding and engineering cementitious material at nanometer scale can result in novel construction materials which are more strong and durable than conventional materials. Engineering concrete at the nanometer scale includes the incorporation of nano sized particles into concrete at suitable proportions and methods. The basic concept behind using nano material which are having large surface area is to improve compressive and flexural strength at early ages, improved hydration characteristics and reduced porosity and water absorption when compared with conventional cementitious materials. Nano materials can also pave the path to reduce the cement content in concrete than the conventional mixes while maintaining same strength characteristics, which will lead into the production of ‘greener’ concrete. This paper reviews the efforts, current status, and effect of various nano materials on properties of cement mortar and concrete. So that better understanding of the materials and their uses.