Journal
MATERIALS & DESIGN
Volume 92, Issue -, Pages 499-511Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2015.12.091
Keywords
Self-healing; Cementitious materials; Mechanism; Service conditions; Cost
Categories
Funding
- Nature Science Fund of Jiangsu Province in China [BK20150601]
- National Basic Research Program of China (973 Program) [2011CB013800]
- National Nature Science Fund of China [51178104]
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In this paper, mechanisms of self-healing in cementitious materials, i.e. autogenous self-healing, self-healing based on mineral admixtures, self-healing based on bacteria and self-healing based on adhesive agents, are reviewed. Literature shows that all mechanisms of self-healing are effective, to some extent, under some particular conditions. It reveals that not any particular method of self-healing is the best, but one can be the most suitable for a particular situation. For better application of self-healing concept in engineering practice, favorable situations for self-healing in cementitious materials are summarized. The required environmental conditions for each self-healing mechanism are analyzed. Additional costs for realizing self-healing in concrete structures are also-discussed. Based on the aforementioned aspects of self-healing in cementitious materials, perspectives for further research on application of self-healing in engineering practice are proposed. (C) 2015 Elsevier Ltd. All rights reserved.
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