The current paper presents a bacteria-based self-healing cementitious composite for application in low-temperature marine environments. The composite was tested for its crack-healing capacity through crack water permeability measurements, and strength development through compression testing. The composite displayed an excellent crack-healing capacity, reducing the permeability of cracks 0.4 mm ...

This paper presents an approach to predicting the intrinsic self-healing in concrete using a hybrid genetic algorithm-artificial neural network (GA-ANN). A genetic algorithm was implemented in the network as a stochastic optimizing tool for the initial optimal weights and biases. This approach can assist the network in achieving a global optimum and avoid the possibility of the network getting ...

Self-healing cementitious materials containing a microencapsulated healing agent are appealing due to their great application potential in improving the serviceability and durability of concrete structures. In this study, poly(phenol-formaldehyde) (PF) microcapsules that aim to provide a self-healing function for cementitious materials were prepared by an in situ polymerization reaction. Size g...

The concept of self-healing concrete is becoming more necessary as sustainability in construction desirable. Amongst the current solutions this technology are autogenous, chemical, and bacterial self-healing. It paramount that secondary raw materials be used production selfhealing a form sustainable solution. Therefore, paper, admixture “Betocrete-CP-360-WP”, which crystallizing waterproofing w...

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 perform...

Steel fiber reinforced self-compacting concrete is well accepted for better resistance segregation, and effective use in congested reinforcements. It will have improved ductile property crack propagation minimum. As the need sustainable materials increasing all over world, innovative technique making more durable significant importance. prone to cracking, cracks make vulnerable fact that it deb...