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dc.contributor.authorAchal, V.
dc.contributor.authorMukherjee, Abhijit
dc.contributor.authorGoyal, S.
dc.contributor.authorReddy, M.
dc.identifier.citationAchal, Varenyam and Mukherjee, Abhijit and Goyal, Shweta and Reddy, M. Sudhakara. 2012. Corrosion prevention of reinforced concrete with microbial calcite precipitation. ACI Materials Journal. 109 (2): pp. 157-164.

Microbially induced calcite precipitation (MICP) on concrete or mortar is an important area of research to enhance the durability of construction materials. The effectiveness of MICP in reducing reinforcement corrosion is investigated. Reinforced concrete (RC) specimens were treated with the bacterial strain Bacillus sp. CT-5, isolated from the cement sample, and subjected to accelerated corrosion. The results showed that bacterial-treated RC specimens reduced the corrosion rate four times more than the control specimens. A considerable reduction in mass loss and increase in pullout strength is observed with MICP-treated specimens. Corn steep liquor, an industrial pollutant, was used as a nutrient source to grow the bacterial cells for MICP in cementitious structures. This is a step toward the development of microbial concrete that provides a greener and more ecofriendly option.

dc.publisherAmerican Concrete Institute
dc.subjectindustrial pollutant
dc.subjectreinforced concrete
dc.subjectpullout strength
dc.subjectcorn steep liquor
dc.subjectmicrobially induced calcite precipitation
dc.titleCorrosion prevention of reinforced concrete with microbial calcite precipitation
dc.typeJournal Article
dcterms.source.titleACI Materials Journal
curtin.accessStatusFulltext not available

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