Self-healing at early-age, a way to improve the chloride resistance of blast-furnace slag cementitious materials

•Self-healing of cementitious materials limits chloride penetration.•At early age, the blast-furnace slag addition increases the self-healing capacity.•Migration coefficient of self-healed materials is proportional to crack width.•Crack width, tortuosity, constructivity and ionic interaction affect...

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Bibliographic Details
Published in:Construction & building materials 2016-06, Vol.113, p.1017-1028
Main Authors: Darquennes, A., Olivier, K., Benboudjema, F., Gagné, R.
Format: Article
Language:English
Subjects:
Analysis
Blast-furnace slag
Blast-furnaces
Cement
Chemical properties
Chloride migration
Civil Engineering
Concrete
Cracking
Engineering Sciences
Mechanical properties
Self-healing
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Summary:•Self-healing of cementitious materials limits chloride penetration.•At early age, the blast-furnace slag addition increases the self-healing capacity.•Migration coefficient of self-healed materials is proportional to crack width.•Crack width, tortuosity, constructivity and ionic interaction affect diffusivity. Having a good chloride penetration resistance, blast-furnace slag cementitious materials are often used in coastal and marine structures. This type of civil engineering structures however can present cracking at early age (
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2016.03.087