Nanotechnology is one of the most active research areas which has wide applications in almost all the fields. As concrete is most usable material in construction industry it’s been required to improve its quality. Improving concrete properties by addition of nano particles have shown significant improvement than conventional concrete. A concrete made with portland cement particles that are less than 500nm as a cementing agent.Currently cement particle sizes range from a few nano-meters to a maximum of about100 micro meters.