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The requirements for the stringent implementation of sustainability criteria for development, considering the worldwide context of massive pollution, the need to preserve the natural resources and the urge for environmental protection emphasize the drive for developing high-performance building materials, both in terms of raw materials used and low production costs, as well as related to their physical-mechanical and durability characteristics along the lifespan of the structure where used. Consequently, stimulating the intrinsic self-healing ability of cementitious composites, aiming both, the increase of durability and structural lifespan expansion with simultaneous reduction of repair and maintenance activities, represents an innovative, highly explored, contemporary global research direction. This paper presents the preliminary direction concerning the theoretical investigation and the applicative development of an intelligent addition of reactive grains with polymeric encapsulation, for cementitious materials, namely for optimizing their durability by stimulating the long-term continuous hydration.