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.
|Title of host publication||Proceedings of the RILEM Conference on Microorganisms-Cementitious Materials Interactions|
|Editors||Virginie Wiktor, Henk Jonkers, Alexandra Bertron|
|Place of Publication||Paris|
|Publisher||RILEM publications S.A.R.L|
|Number of pages||15|
|Publication status||Published - Jun 2016|
|Event||RILEM Conference on Microorganisms-Cementitious Materials Interactions - Delft, Netherlands|
Duration: 23 Jun 2016 → …
|Conference||RILEM Conference on Microorganisms-Cementitious Materials Interactions|
|Period||23/06/16 → …|
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  RILEM publications S.A.R.L.