• NAVODYA TYAGI
• ASHOK KUMAR YADAV

Crack formation in concrete is common, but a typical phenomenon related to durability. Percolation of cracks may lead to leakage problems or ingress of deleterious materials, causing deterioration of the concrete matrix or corrosion of embedded steel reinforcement. Durability can be enhanced by preventing further ingress of water and other substances. In recent years a bacteria-based self-healing concrete is being developed to extend the service life. A two component healing agent is added to the concrete mixture. The agent consists of bacteria and an organic mineral precursor compound. Whenever cracks occur and water is present the bacteria become active and convert the incorporated organic compounds into calcium carbonate, which precipitates and is able to seal and block cracks. This paper aims to review the development of bacteria-based self-healing concrete, introducing the proposed healing system. Different stages in the development are discussed, and some recommendations for further research are given.

“SELF HEALING CONCRETE – THE NEED”

"“SELF HEALING CONCRETE – THE NEED”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.1-14, June 2019, Available :http://www.jetir.org/papers/JETIRDH06001.pdf

"“SELF HEALING CONCRETE – THE NEED”", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp1-14, June 2019, Available at : http://www.jetir.org/papers/JETIRDH06001.pdf