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Bacterial technology-enabled cementitious composites: A review
Li, L. Zheng, Q. Li, Z. Han, B.
Li, L.
Zheng, Q.
Li, Z.
Han, B.
Publication Date
2019-10-01
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© 2019 Elsevier Ltd. All rights reserved. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
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Yes
Open Access status
Accepted for publication
2019-06-18
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Abstract
Cementitious composites are generally brittle and develop considerable tension cracks, resulting in corrosion of steel reinforcement and compromising structural durability. With careful selection and treatment, some kinds of bacteria are able to precipitate calcium carbonate and ‘heal’ cracks in cementitious composites through their metabolism, namely bacterial activity. It is envisioned that the bacterial technology-enabled cementitious composites could have great potential for engineering applications such as surface treatment, crack repair and self-healing construction material. This paper presents the state-of-the-art development of bacterial technology-enabled cementitious composites from the following aspects: mechanisms of bacterial induced calcium carbonate precipitation; methods of applying bacteria into cementitious composites; mechanical properties, durability and their influencing factors; various applications; cost effective analysis and prospect. The paper concludes with an outline of some future opportunities and challenges in the application of bacterial technology-enabled cementitious composites in construction.
Version
Accepted manuscript
Citation
Li L, Zheng Q, Li Z et al (2019) Bacterial technology-enabled cementitious composites: A review. Composite Structures. 225: 111170.
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Article