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Pro129

SELF-HEALING CAPACITY OF HIGH PERFORMANCE FIBRE REINFORCED CEMENTITIOUS COMPOSITES: STATE OF ART AND VISION FOR THE FUTURE



Author(s): Liberato Ferrara
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference on UHPC Materials and Structures (UHPC2018-China)
Editor(s): Caijun Shi and Baochun Chen
ISBN: 978-2-35158-219-0
e-ISBN: 978-2-35158-220-6
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 131-143
Total Pages: 13
Language : English


Abstract: Cracked state is the normal service condition of reinforced concrete structures: cracks, if
not properly controlled, can lead to a rapid deterioration and would result into increasing
maintenance costs to guarantee the anticipated level of performance.
Self-healing concrete can be a valuable asset allowing to control and repair cracks as soon
as they are likely to occur. The effectiveness of self-healing can be improved with the use of
fibres due to their capacity to control crack width and enhance multiple crack formation. The
use advanced cement based materials (as e.g. HPFRCC) and techniques (stimulated
autogenous and engineered healing) becomes hence crucial to face the challenges of
durability and sustainability of new and existing structures.
The paper provides a state of art on the current knowledge on the topic and identifies those
gaps which still require further studies, such as healing capacity under sustained stress and
repeatability healing/cracking cycles. Finally, the issue of consistently incorporating self-
healing outcomes into durability-based design approaches for structures made of or retrofitted
with HPFRCCs is addressed.


Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00


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