
Underwater concrete are used in hydro projects, marine construction, metro projects and underwater repair. The major growth driver of the underwater concrete market is the increasing need for placing the concrete in structures such as basements, ducts, harbours, and bridges. Underwater concrete is also used extensively for construction of such underwater structures, owing to its properties such as low heat of hydration, controlled set time, comprehensive strength and adequate bond. The major factor that is expected to restrain the growth of the market is the problem faced in the segregation of fine aggregates from coarse aggregates.