It is required to continue investigations of the cavitation resistance of concretes with respect to aggregates (especially porous and portland cement clinker), combined action of cavitation and frost on corrosive media, and impregnation by monomers or other variants of the combination of concrete and polymers. When updating the existing standards special attention should be devoted to strict observance of concreting technology and development of measures for assuring a suitable quality of concrete and its control.