What is self-healing concrete?
Self-healing concrete is mostly defined as the ability of concrete to repair its cracks autogenously or autonomously. It is also called self-repairing concrete. Cracks in concrete are a common phenomenon due to its relatively low tensile strength.
What is self-healing concrete and how does it work?
Sodium Silicate-Based Self Healing Concrete As cracks form in the concrete, these capsules rupture and release the sodium silicate. The healing agent reacts with the calcium hydroxide within the concrete, forming a calcium-silica-hydrate gel that repairs the crack and hardens in about a week.
What are the types of self-healing concrete?
Self Healing Concrete is a class of smart material that has the structurally incorporated ability repair damages caused by mechanical usage over time….Types of Self Healing Concrete
- bacillus pseudofirmus.
- bacillus balodurans.
- bacillus cohnil.
- bacillus paterurizing.
- bacillus spaericus.
- escherichia coil.
What are the applications of self-healing concrete?
Application in Large-Size Buildings and Roads (Residential and Public) Self-healing concrete is used in the construction of bridges and all road constructions as they often experience small-sized cracks due to heavy loads and constantly need maintenance.
Who makes self-healing concrete?
Founded near to Delft in 2015, Green Basilisk collaborated with the Dutch chemicals company Corbion to develop the self-healing concrete. The company now sells it to construction companies mixing the concrete, and expects to generate €1M in revenue in the coming year.
Which bacteria is used in self-healing concrete?
Bacillus Megaterium bacteria were used in concrete and results shows 24% increase in compressive strength [12]. The deposition of calcium carbonate in concrete by Bacillus Sphaericus improves the durability of concrete [13].