Bacteria-based self-healing concrete: Effects of environment, exposure and crack size

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Abstract

The effect of water-borne contaminants on the durability of concrete is well-known and cracked concrete is more susceptible to permeation of these contaminants. An approach to autonomic self-healing of such concretes is the utilization of microbiologically-induced calcite-precipitation. This approach uses the metabolic activity of bacteria and biomineral precursors embedded within the concrete to form an inorganic material, usually calcite, as the healing compound. However, bacteria-based healing of concrete creates a number of scientific and engineering challenges at the biology-concrete technology interface. This paper provides a review of previous and on-going research on the use of bacteria-based self-healing of concrete in relation to the problems associated with the setting, hardening and carbonation of concrete and the problems associated with healing large cracks.
Original languageEnglish
Title of host publicationProceedings of the RILEM Conference on Microorganisms-Cementitious Materials Interactions
EditorsVirginie Wiktor, Henk Jonkers, Alexandra Bertron
Place of PublicationParis
PublisherRILEM publications S.A.R.L
Number of pages15
ISBN (Electronic)978-2-35158-160-5
Publication statusPublished - Jun 2016
EventRILEM Conference on Microorganisms-Cementitious Materials Interactions - Delft, Netherlands
Duration: 23 Jun 2016 → …

Conference

ConferenceRILEM Conference on Microorganisms-Cementitious Materials Interactions
CountryNetherlands
CityDelft
Period23/06/16 → …

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  • Cite this

    Paine, K. (2016). Bacteria-based self-healing concrete: Effects of environment, exposure and crack size. In V. Wiktor, H. Jonkers, & A. Bertron (Eds.), Proceedings of the RILEM Conference on Microorganisms-Cementitious Materials Interactions [10] RILEM publications S.A.R.L.