Self-healing Concrete Summary Draft 1

 In the article, “The Self-healing Concrete That Can Fix Its Own Cracks”, Jonkers (2015) proposed an innovation that embedded self-activating bacteria into concrete to make it self-healing. He stated that the bacteria can exist  for up to 200 years as long as particles exist for it to feed on. He mentioned that the bacteria will start producing limestone to repair the cracks when water starts seeping into the cracks. He noted that the self-healing concrete was unable to repair  large cracks, and only capable in repairing cracks up to 0.8mm wide. He commented that a cubic meter of concrete cost €70, while the self-healing concrete cost €100. Nonetheless, he remarked that some countries with coastal communities or tropical regions with extreme rainfall are seeing the cost-benefit analysis of using the self-healing concrete. He concluded these tests were done in developing countries where they see profits in the future.