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Publikācija: A Review of Self-Healing Concrete for Damage Management of Structures

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Nosaukums oriģinālvalodā A Review of Self-Healing Concrete for Damage Management of Structures
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.1. Būvniecības un transporta inženierzinātnes
Autori Nele D. De Belie
Elke Gruyaert
Abir Al-Tabbaa
Paola Antonaci
Cornelia Baerǎ
Diāna Bajāre
Aveline Darquennes
Robert T Davies
Liberato Ferrara
Tony Jefferson
Chrysoula Litina
B. Miljević
Anna Otlewska
Jonjaua G. Ranogajec
Marta Roig-Flores
Kevin A. Paine
Paweł Łukowski
Pedro Serna
J.M. Tulliani
Snežana Vučetić
Jianyun Wang
Henk M. Jonkers
Atslēgas vārdi bacteria-assisted self-healing, concrete, mineral admixtures, mortar, polymers, self-healing
Anotācija The increasing concern for safety and sustainability of structures is calling for the development of smart self-healing materials and preventive repair methods. The appearance of small cracks (<300 µm in width) in concrete is almost unavoidable, not necessarily causing a risk of collapse for the structure, but surely impairing its functionality, accelerating its degradation, and diminishing its service life and sustainability. This review provides the state-of-the-art of recent developments of self-healing concrete, covering autogenous or intrinsic healing of traditional concrete followed by stimulated autogenous healing via use of mineral additives, crystalline admixtures or (superabsorbent) polymers, and subsequently autonomous self-healing mechanisms, i.e. via, application of micro-, macro-, or vascular encapsulated polymers, minerals, or bacteria. The (stimulated) autogenous mechanisms are generally limited to healing crack widths of about 100–150 µm. In contrast, most autonomous self-healing mechanisms can heal cracks of 300 µm, even sometimes up to more than 1 mm, and usually act faster. After explaining the basic concept for each self-healing technique, the most recent advances are collected, explaining the progress and current limitations, to provide insights toward the future developments. This review addresses the research needs required to remove hindrances that limit market penetration of self-healing concrete technologies.
DOI: 10.1002/admi.201800074
Hipersaite: https://onlinelibrary.wiley.com/doi/abs/10.1002/admi.201800074 
Atsauce De Belie, N., Gruyaert, E., Al-Tabbaa, A., Antonaci, P., Baerǎ, C., Bajāre, D., Darquennes, A., Davies, R., Ferrara, L., Jefferson, T., Litina, C., Miljević, B., Otlewska, A., Ranogajec, J., Roig-Flores, M., Paine, K., Łukowski, P., Serna, P., Tulliani, J., Vučetić, S., Wang, J., Jonkers, H. A Review of Self-Healing Concrete for Damage Management of Structures. Advanced Materials Interfaces, 2018, Vol.5, Iss.17, 1800074.-1800074.lpp. ISSN 2196-7350. Pieejams: doi:10.1002/admi.201800074
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ID 27941