A Review on Biofortified Self-healing Concrete

Author(s): Sachin Tiwari, Shilpa Pal, Rekha Puria and Vikrant Nain
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 116-125
Total Pages: 10
Language : English

Abstract: Concrete is widely used as construction material due to its low cost and high compressive strength. However, low tensile strength and susceptibility to chemical attack leads to the formation of cracks. This not only reduces the life of infrastructure but also burdens economy of any nation. Continuous efforts are made over the years for development of efficient repair methods. Physical and chemical methods aid in repair of cracks but their usage is limited. In recent years, the self-healing ability of concrete by bacteria is being extensively explored for development of sustainable concrete. This review focuses on the self-repair methods with special emphasis on the usage of bacteria in crack healing. Self-repair primarily means the ability to heal damages with available environmental resources. There are some challenges to make a durable biofortified concrete such as the viability of various types of bacterial cells and its effect on the mechanical properties. Evaluation of self-healed concrete can be done by destructive and non - destructive methods at macro, micro and nano level. The paper concludes with the future works which need to be done for making a sustainable biofortified concrete.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00