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Ultimate bond strength assessment of uncorroded and corroded reinforced recycled aggregate concretes

Fernández Pérez, Ignasi / Etxeberria Larrañaga, Miren / Marí Bernat, Antonio Ricardo

This experimental study assesses the bond performance of recycled aggregate concretes (RAC) with embedded uncorroded and corroded steel bars. The RAC were produced using 20%, 50% and 100% of coarse recycled aggregates obtained from the crushing of waste 40 MPa compressive strength concrete. Three degrees of corrosion were reached on the steel bars. The uncorroded RAC specimens presented a comparable bond strength to that of conventional concrete (CC). Low corroded RAC specimens presented better bond performance and later superficial cracking when compared to those of CC. At a higher corrosion degree, all concretes presented a similar bond capacity. The ultimate bond strength estimation models used for CC were adequate for its prediction on RAC. ; Peer Reviewed ; Postprint (author's final draft)

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Ultimate bond strength assessment of uncorroded and corroded reinforced recycled aggregate concretes

Fernández Pérez, Ignasi / Etxeberria Larrañaga, Miren / Marí Bernat, Antonio Ricardo

This experimental study assesses the bond performance of recycled aggregate concretes (RAC) with embedded uncorroded and corroded steel bars. The RAC were produced using 20%, 50% and 100% of coarse recycled aggregates obtained from the crushing of waste 40 MPa compressive strength concrete. Three degrees of corrosion were reached on the steel bars. The uncorroded RAC specimens presented a comparable bond strength to that of conventional concrete (CC). Low corroded RAC specimens presented better bond performance and later superficial cracking when compared to those of CC. At a higher corrosion degree, all concretes presented a similar bond capacity. The ultimate bond strength estimation models used for CC were adequate for its prediction on RAC. ; Peer Reviewed ; Postprint (author's final draft)

Ultimate bond strength assessment of uncorroded and corroded reinforced recycled aggregate concretes

Fernández Pérez, Ignasi / Etxeberria Larrañaga, Miren / Marí Bernat, Antonio Ricardo

This experimental study assesses the bond performance of recycled aggregate concretes (RAC) with embedded uncorroded and corroded steel bars. The RAC were produced using 20%, 50% and 100% of coarse recycled aggregates obtained from the crushing of waste 40 MPa compressive strength concrete. Three degrees of corrosion were reached on the steel bars. The uncorroded RAC specimens presented a comparable bond strength to that of conventional concrete (CC). Low corroded RAC specimens presented better bond performance and later superficial cracking when compared to those of CC. At a higher corrosion degree, all concretes presented a similar bond capacity. The ultimate bond strength estimation models used for CC were adequate for its prediction on RAC. ; Peer Reviewed ; Postprint (author's final draft)

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Title:

Ultimate bond strength assessment of uncorroded and corroded reinforced recycled aggregate concretes

Contributors:

Fernández Pérez, Ignasi (author) / Etxeberria Larrañaga, Miren (author) / Marí Bernat, Antonio Ricardo (author) / Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental / Universitat Politècnica de Catalunya. MATCAR - Materials de Construcció i Carreteres / Universitat Politècnica de Catalunya. ATEM - Anàlisi i Tecnologia d'Estructures i Materials

Publication date:

2016-05-01

DOI:

https://doi.org/10.1016/j.conbuildmat.2016.02.150

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Reinforced concrete--Corrosion , Initial cracking , Formigó armat -- Corrosió , Bond-slip , Steel bars--Corrosion , Pull-out , Acer -- Corrosió , Recycled Aggregate Concrete , Steel corrosion , Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó

Classification:

DDC: 690

Licence:

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

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