Self-Healing Cement: A Review
The self-healing of cementitious materials can be achieved by precipitation of calcium carbonate through the enzymatic hydrolysis of urea. When a crack appears in cement, the damage can be repaired by allowing bacteria to encounter the water seeping through the crack. This forms a calcium carbonate,...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Nanomanufacturing |
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| Online Access: | https://www.mdpi.com/2673-687X/3/3/21 |
| _version_ | 1797578480156672000 |
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| author | George Kordas |
| author_facet | George Kordas |
| author_sort | George Kordas |
| collection | DOAJ |
| description | The self-healing of cementitious materials can be achieved by precipitation of calcium carbonate through the enzymatic hydrolysis of urea. When a crack appears in cement, the damage can be repaired by allowing bacteria to encounter the water seeping through the crack. This forms a calcium carbonate, which heals the cracks. This occurs because microorganisms begin metabolizing and precipitating the mineral, healing the damage caused by the crack. Then, bacteria are incorporated into various containers, which release microorganisms by crushing, leading to the precipitation of calcium carbonate. In addition, this paper references the superabsorbent polymers (SAP) used for self-healing and hybrid organic-inorganic core–shell SAPs, a recently developed, state-of-the-art self-healing technology for cementitious materials. |
| first_indexed | 2024-03-10T22:22:29Z |
| format | Article |
| id | doaj.art-accef878c26c43428f234ed300f5444e |
| institution | Directory Open Access Journal |
| issn | 2673-687X |
| language | English |
| last_indexed | 2024-03-10T22:22:29Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomanufacturing |
| spelling | doaj.art-accef878c26c43428f234ed300f5444e2023-11-19T12:13:43ZengMDPI AGNanomanufacturing2673-687X2023-08-013332634610.3390/nanomanufacturing3030021Self-Healing Cement: A ReviewGeorge Kordas0Self-Healing Structural Materials Laboratory, World-Class Scientific Center of the Federal State Autonomous Educational Institution of Higher Education, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaThe self-healing of cementitious materials can be achieved by precipitation of calcium carbonate through the enzymatic hydrolysis of urea. When a crack appears in cement, the damage can be repaired by allowing bacteria to encounter the water seeping through the crack. This forms a calcium carbonate, which heals the cracks. This occurs because microorganisms begin metabolizing and precipitating the mineral, healing the damage caused by the crack. Then, bacteria are incorporated into various containers, which release microorganisms by crushing, leading to the precipitation of calcium carbonate. In addition, this paper references the superabsorbent polymers (SAP) used for self-healing and hybrid organic-inorganic core–shell SAPs, a recently developed, state-of-the-art self-healing technology for cementitious materials.https://www.mdpi.com/2673-687X/3/3/21bacteriacementself-healingnanocontainerssuperabsorbent polymers |
| spellingShingle | George Kordas Self-Healing Cement: A Review Nanomanufacturing bacteria cement self-healing nanocontainers superabsorbent polymers |
| title | Self-Healing Cement: A Review |
| title_full | Self-Healing Cement: A Review |
| title_fullStr | Self-Healing Cement: A Review |
| title_full_unstemmed | Self-Healing Cement: A Review |
| title_short | Self-Healing Cement: A Review |
| title_sort | self healing cement a review |
| topic | bacteria cement self-healing nanocontainers superabsorbent polymers |
| url | https://www.mdpi.com/2673-687X/3/3/21 |
| work_keys_str_mv | AT georgekordas selfhealingcementareview |