Self Healing concrete 



Self-healing concrete is a type of concrete that has the ability to repair itself when it cracks.
There are many benefits to self-healing concrete, and scientists are just beginning to scratch the surface of its potential. This type of concrete has the ability to repair itself when cracks appear, making it an ideal material for infrastructure projects.

In addition to its self-healing properties, self-healing concrete is also more durable and longer lasting than traditional concrete. It is also environmentally friendly, as it doesn’t require the use of harmful chemicals or other materials.

Scientists are continuing to study self-healing concrete in order to unlock even more of its potential. As they do, this incredible material is sure to revolutionize the construction industry and the way we build our world.

This type of concrete is still in the development stage. Self-healing concrete could help to reduce the amount of maintenance that is required for concrete structures, and it could also help to extend the lifespan of concrete structures.

Methods of self healing in Concrete

Autogenous Self-healing Concrete

Concrete in itself processes normally specific autogenous healing properties. In this technique unhydrated cement particles function as a healing material. The hydration of clinkers minerals present in it starts the healing action.

Autogenous self-healing


While autogenous self-healing technique is inherent, it can demonstrate effective to handle little crcks. This is where independent self-healing techniques hold ground. To further develop execution and for substantial fix, here extra outer self-healing arrangements are catered.

Microbial or Bacterial Self-healing Concrete



This type of concrete is made with bacteria that helps to fill in the cracks when they occur. The bacteria is mixed with the concrete before it is set, and it remains dormant until the concrete cracks. When the concrete cracks, the bacteria is activated and it starts to fill in the cracks. 
This type of concrete is still in the development stage. Self-healing concrete could help to reduce the amount of maintenance that is required for concrete structures, and it could also help to extend the lifespan of concrete structures.

ADVANTAGES OF SELF HEALING CONCRETE:

There are the following advantages
1. Self-repairing of cracks.
2. When compared to our normal concrete more increase in compressive strength and flexural strength.
3. It helps in the decreasing the permeability of concrete and resistance towards effects of freeze-thaw.
4. It also increase the durability of steel-reinforced concrete and reduces the corrosion of steel due to cracks development.