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Nanosilica (nSiO2) as a cement-based composites additive, exhibits tremendous properties which can positively affect a variety of concrete and cement mortar properties such as: compressive, flexural and tensile strength,early strength improvement, increase of hydration rate and acceleration of the pozzolanic reaction.The uniform dispersion of nanoparticles in the cement matrix is a key issue in their application in the field.Due to high surface area to volume ratio of nanosilica particles, the workability of concretes can be highly affected.Overcoming this obstacle is essential in the case of nanosilica application in self-compacting concretes (SCC) or heavyweight concretes (HWC).