Cementitious materials with biological additive for enhanced durability in marine environment

Abstract Concrete structures suffer from cracking that leads to deterioration and shortening of service life. This is very critical for underwater structures, i.e., immersed bridge piles, tunnel or submerged floating tunnels, which are consistently susceptible ingress harmful ions (chloride, sulphate carbonate ions). Autonomous healing concrete cracks can be beneficial assure durability performance during the In this context paper presents a preliminary experimental activity carried out study self‐healing capacity cementitious composites in marine environment. Four series paste samples prepared evaluate autonomous capabilities, achieved through biotic abiotic additions. The campaign articulated four phases, such as: specimen preparation; tests compression; immersion water; crack evaluation. performances examined compared terms mechanical strength width over time. Results highlight efficiency technology healing.