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    Bacterial technology-enabled cementitious composites: A review

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    Ashour_Composite_Structures.pdf (1.343Mb)
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    Publication date
    2019-10-01
    Author
    Li, L.
    Zheng, Q.
    Li, Z.
    Ashour, Ashraf F.
    Han, B.
    Keyword
    Bacterial induced calcium carbonate precipitation
    Principle of technology-enabled cementitious composites
    Mechanical properties and durability
    Rights
    © 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.
    Peer-Reviewed
    Yes
    
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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.
    URI
    http://hdl.handle.net/10454/17127
    Version
    Accepted manuscript
    Citation
    Li L, Zheng Q, Li Z et al (2019) Bacterial technology-enabled cementitious composites: A review. Composite Structures. 225: 111170.
    Link to publisher’s version
    https://doi.org/10.1016/j.compstruct.2019.111170
    Type
    Article
    Collections
    Engineering and Informatics Publications

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