Self-Healing Concrete (SHCR): The Role Of Sodium Alginate
[ 1 ] Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ 2 ] Instytut Budownictwa, Wydział Inżynierii Lądowej i Transportu, Politechnika Poznańska | [ 3 ] Instytut Technologii i Inżynierii Chemicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | [ SzD ] doctoral school student | [ P ] employee
[2.7] Civil engineering, geodesy and transport[7.6] Chemical sciences
2024
Journal year: 2024 | Journal volume: vol. 21 | Journal number: iss. 4, ser. 1
scientific article
english
- Crack repair
- Calcium alginate gel
- Self-healing concrete
- Sodium alginate
- Sustainable construction
- Structural integrity
EN The first reason why concrete is a very useful material in construction is because of its density and strength. However, they have a tendency to crack that require constant fixing, and this is usually expensive and tiresome. The purpose of this research is to investigate the feasibility of employing sodium alginate, a naturally occurring polysaccharide, as an encapsulated self-healing system for concrete. When sodium alginate is applied on concrete, it interacts with the calcium ions in the concrete to create a calcium alginate gel which helps to close up any cracks and also increases the durability of the concrete. The study embraced the usage of sodium alginate, rapeseed oil, calcium chloride, and water hydrate, which were blended with the IKA T25 harmonisation machine. The outcomes of the experiments indicate that self-healing concrete based on sodium alginate has higher durability and the need for repairs is minimised, thus, the use of sodium alginate in new construction can be considered a promising direction.
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