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Mechanical behaviour of self-compacting concrete with hybrid fibre reinforcement

Pons, G. / Mouret, M. / Alcantara, M. / Granju, J. L.

Abstract In this study, fibre-reinforced self-compacting concretes were developed for precast building components, incorporating either adherent metal fibres or polymeric synthetic slipping fibres or a combination of both. To achieve the warranted workability, compressive and splitting tensile strengths, compositions were determined by preliminary tests on self-compacting materials with various proportions of metal fibres. Bending tests in controlled deflection confirmed the positive contribution of fibres in the mechanical behaviour of self-compacting concrete. The comparison between vibrated and self-compacting concretes of similar mechanical characteristics indicated a possible better fibre-matrix bond in the case of self-compacting types. The results also showed that the properties of the hybrid fibre-reinforced self-compacting concrete could be inferred from the properties of the individual single-fibre reinforcements and their respective proportions through simple mix-rules.

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Mechanical behaviour of self-compacting concrete with hybrid fibre reinforcement

Pons, G. / Mouret, M. / Alcantara, M. / Granju, J. L.

Abstract In this study, fibre-reinforced self-compacting concretes were developed for precast building components, incorporating either adherent metal fibres or polymeric synthetic slipping fibres or a combination of both. To achieve the warranted workability, compressive and splitting tensile strengths, compositions were determined by preliminary tests on self-compacting materials with various proportions of metal fibres. Bending tests in controlled deflection confirmed the positive contribution of fibres in the mechanical behaviour of self-compacting concrete. The comparison between vibrated and self-compacting concretes of similar mechanical characteristics indicated a possible better fibre-matrix bond in the case of self-compacting types. The results also showed that the properties of the hybrid fibre-reinforced self-compacting concrete could be inferred from the properties of the individual single-fibre reinforcements and their respective proportions through simple mix-rules.

Mechanical behaviour of self-compacting concrete with hybrid fibre reinforcement

Pons, G. / Mouret, M. / Alcantara, M. / Granju, J. L.

Abstract In this study, fibre-reinforced self-compacting concretes were developed for precast building components, incorporating either adherent metal fibres or polymeric synthetic slipping fibres or a combination of both. To achieve the warranted workability, compressive and splitting tensile strengths, compositions were determined by preliminary tests on self-compacting materials with various proportions of metal fibres. Bending tests in controlled deflection confirmed the positive contribution of fibres in the mechanical behaviour of self-compacting concrete. The comparison between vibrated and self-compacting concretes of similar mechanical characteristics indicated a possible better fibre-matrix bond in the case of self-compacting types. The results also showed that the properties of the hybrid fibre-reinforced self-compacting concrete could be inferred from the properties of the individual single-fibre reinforcements and their respective proportions through simple mix-rules.

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Title:

Mechanical behaviour of self-compacting concrete with hybrid fibre reinforcement

Contributors:

Pons, G. (author) / Mouret, M. (author) / Alcantara, M. (author) / Granju, J. L. (author)

Published in:

Materials and Structures ; 40

Publication date:

2006

ISSN:

DOI:

https://doi.org/10.1617/s11527-006-9131-y

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Crack Load , Concrete Matrix , Crack Opening , Splitting Tensile Strength , Energy Dissipation Capacity

Classification:

BKL: 56.45 Baustoffkunde / 51.30 Werkstoffprüfung, Werkstoffuntersuchung

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