Corrosion prevention of reinforced concrete with microbial calcite precipitation
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 bacteri...
| Main Authors: | , , , |
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| Format: | Journal Article |
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American Concrete Institute
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/13546 |
| _version_ | 1848748375056318464 |
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| author | Achal, V. Mukherjee, Abhijit Goyal, S. Reddy, M. |
| author_facet | Achal, V. Mukherjee, Abhijit Goyal, S. Reddy, M. |
| author_sort | Achal, V. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T07:04:02Z |
| format | Journal Article |
| id | curtin-20.500.11937-13546 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:04:02Z |
| publishDate | 2012 |
| publisher | American Concrete Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-135462017-09-13T15:00:25Z Corrosion prevention of reinforced concrete with microbial calcite precipitation Achal, V. Mukherjee, Abhijit Goyal, S. Reddy, M. industrial pollutant corrosion reinforced concrete pullout strength corn steep liquor microbially induced calcite precipitation 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. 2012 Journal Article http://hdl.handle.net/20.500.11937/13546 10.14359/51683702 American Concrete Institute restricted |
| spellingShingle | industrial pollutant corrosion reinforced concrete pullout strength corn steep liquor microbially induced calcite precipitation Achal, V. Mukherjee, Abhijit Goyal, S. Reddy, M. Corrosion prevention of reinforced concrete with microbial calcite precipitation |
| title | Corrosion prevention of reinforced concrete with microbial calcite precipitation |
| title_full | Corrosion prevention of reinforced concrete with microbial calcite precipitation |
| title_fullStr | Corrosion prevention of reinforced concrete with microbial calcite precipitation |
| title_full_unstemmed | Corrosion prevention of reinforced concrete with microbial calcite precipitation |
| title_short | Corrosion prevention of reinforced concrete with microbial calcite precipitation |
| title_sort | corrosion prevention of reinforced concrete with microbial calcite precipitation |
| topic | industrial pollutant corrosion reinforced concrete pullout strength corn steep liquor microbially induced calcite precipitation |
| url | http://hdl.handle.net/20.500.11937/13546 |