Self-healing efficiency of Ultra High-Performance Fiber-Reinforced Concrete through permeability to chlorides
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comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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INVESTIGACIONMetadata
Title
Self-healing efficiency of Ultra High-Performance Fiber-Reinforced Concrete through permeability to chloridesDate
2021-12-06Publisher
ElsevierISSN
0950-0618Bibliographic citation
H. Doostkami, M. Roig-Flores, P. Serna. Self-healing efficiency of Ultra High-Performance Fiber-Reinforced Concrete through permeability to chlorides. Constr. Build. Mater., 310 (2021), pp. 125168, 10.1016/j.conbuildmat.2021.125168Type
info:eu-repo/semantics/articlePublisher version
https://www.sciencedirect.com/science/article/pii/S0950061821029123Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
This study presents a novel methodology to evaluate the self-healing capability of Ultra High-Performance Fiber-Reinforced Concrete (UHPFRC) designed to compare conventional concrete types. The procedure used combines ... [+]
This study presents a novel methodology to evaluate the self-healing capability of Ultra High-Performance Fiber-Reinforced Concrete (UHPFRC) designed to compare conventional concrete types. The procedure used combines loading reinforced concrete elements until a fixed strain level to have a comparable total crack opening. Afterwards, water penetration to chlorides is used as an indicator of permeability. This work compares autogenous healing efficiency of a conventional concrete, a high-performance concrete, and two types of UHPFRCs with and without 0.8% of a crystalline admixture (CA) by the binder weight. The results show that all UHPFRC specimens exhibited excellent autogenous healing, higher than conventional concretes for an equivalent total crack. The self-healing results depended greatly on the crack size and the fiber content. Additionally, UHPFRCs with CA obtained the lowest water permeability after promoting self-healing for one month in water immersion and presented almost complete healing against chloride penetration. [-]
Is part of
Construction and Building Materials, 2021, vol. 310Investigation project
info:eu-repo/grantAgreement/EC/H2020/760824/EU/Rethinking coastal defence and Green-Energy Service infrastructures through enHancEd-durAbiLIty high-performance fiber reinforced cement-based materials./Rights
info:eu-repo/semantics/openAccess
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