Nowadays, Environmental pollution is one of the greatest problems the world is facing which is causing grave & the damage which is not reparable to the world & about 40% humans have died due to air, water & soil pollution. India is now the 4th country in the world to generate nearly 2,454,938 kilo tonnes is carbon dioxide per year. To reduce the carbon emission we can use a material which is called carbon nanotubes (CNT's ). Carbon nanotubes are the materials which have special properties & great potential in various Civil engineering structure. We can convert the waste gases coming from the industrial & automobile or vehicular exhaust or furnace into nanoparticles called carbon nanotubes which is almost three thousand times stronger than steel & one-sixth of its weight. Carbon nanotubes are currently receiving more interest because is their’s extremely good mechanical properties & are now know to be materials of the 21st century. In the present study the effect of the addition of carbon nanotubes on the properties of concrete to be studied. And the comparison between carbon nanotubes & conventional concrete will carry out.