A comprehensive methodology to test the performance of Steel Fibre Reinforced Self-Compacting Concrete (SFR-SCC)
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| Title: | A comprehensive methodology to test the performance of Steel Fibre Reinforced Self-Compacting Concrete (SFR-SCC) |
|---|---|
| Authors: | Ferrara, Liberato1 liberato.ferrara@polimi.it, Bamonte, Patrick1, Caverzan, Alessio1, Musa, Abdisa1,2, Sanal, Irem3 |
| Source: | Construction & Building Materials. Dec2012, p406-424. 19p. |
| Subjects: | Fiber-reinforced concrete, Performance evaluation, Reliability in engineering, Fracture toughness, Mechanical behavior of materials, Data analysis |
| Abstract: | Abstract: The fibre dispersing ability represents a key distinctive feature of the fresh state performance of a Steel Fibre Reinforced Self Compacting Concrete (SFR-SCC) which has to be carefully assessed, also in the sight of its outcomes on the mechanical performance in the hardened state. In this paper, with reference to a typical SFR-SCC mix-composition (containing 50kg/m3 hooked steel fibres 35mm long with an aspect ratio equal to 65), different methods to evaluate the resistance to static and dynamic segregation of fibres have been discussed and the results cross analysed also in order to address a comprehensive testing methodology and to assess its reliability. Among them, cylinder segregation test (for static segregation), channel flow test (for dynamic segregation) as well as the slump flow test: as a matter of fact, through the latter, by measuring the content of fibres in different concentric circular areas of the patty, information on dynamic segregation could be assessed. This test method represents the extension to FR-SCC of a methodology already developed for plain SCC. Results obtained from fresh state performance tests have been finally correlated to the fracture toughness properties in the hardened state, measured on specimens cast according to the same procedure employed for fresh state tests. This set of data allows a thorough evaluation of the correlation among fresh state performance, fibre dispersion and mechanical properties in the hardened state, furthermore enriching the meaningfulness, in a design oriented perspective, of material acceptance tests for quality control in the fresh state. The influence has been finally assessed of expected tolerances in the dosage of the mix constituents (water, cement, and superplasticizers) on the performance in both the fresh and hardened state, as correlated through fibre dispersion related issues. [Copyright &y& Elsevier] |
| Copyright of Construction & Building Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 83652760 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A comprehensive methodology to test the performance of Steel Fibre Reinforced Self-Compacting Concrete (SFR-SCC) – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ferrara%2C+Liberato%22">Ferrara, Liberato</searchLink><relatesTo>1</relatesTo><i> liberato.ferrara@polimi.it</i><br /><searchLink fieldCode="AR" term="%22Bamonte%2C+Patrick%22">Bamonte, Patrick</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Caverzan%2C+Alessio%22">Caverzan, Alessio</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Musa%2C+Abdisa%22">Musa, Abdisa</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Sanal%2C+Irem%22">Sanal, Irem</searchLink><relatesTo>3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Construction+%26+Building+Materials%22">Construction & Building Materials</searchLink>. Dec2012, p406-424. 19p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fiber-reinforced+concrete%22">Fiber-reinforced concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Performance+evaluation%22">Performance evaluation</searchLink><br /><searchLink fieldCode="DE" term="%22Reliability+in+engineering%22">Reliability in engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Fracture+toughness%22">Fracture toughness</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis%22">Data analysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The fibre dispersing ability represents a key distinctive feature of the fresh state performance of a Steel Fibre Reinforced Self Compacting Concrete (SFR-SCC) which has to be carefully assessed, also in the sight of its outcomes on the mechanical performance in the hardened state. In this paper, with reference to a typical SFR-SCC mix-composition (containing 50kg/m3 hooked steel fibres 35mm long with an aspect ratio equal to 65), different methods to evaluate the resistance to static and dynamic segregation of fibres have been discussed and the results cross analysed also in order to address a comprehensive testing methodology and to assess its reliability. Among them, cylinder segregation test (for static segregation), channel flow test (for dynamic segregation) as well as the slump flow test: as a matter of fact, through the latter, by measuring the content of fibres in different concentric circular areas of the patty, information on dynamic segregation could be assessed. This test method represents the extension to FR-SCC of a methodology already developed for plain SCC. Results obtained from fresh state performance tests have been finally correlated to the fracture toughness properties in the hardened state, measured on specimens cast according to the same procedure employed for fresh state tests. This set of data allows a thorough evaluation of the correlation among fresh state performance, fibre dispersion and mechanical properties in the hardened state, furthermore enriching the meaningfulness, in a design oriented perspective, of material acceptance tests for quality control in the fresh state. The influence has been finally assessed of expected tolerances in the dosage of the mix constituents (water, cement, and superplasticizers) on the performance in both the fresh and hardened state, as correlated through fibre dispersion related issues. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Construction & Building Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.conbuildmat.2012.07.057 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 406 Subjects: – SubjectFull: Fiber-reinforced concrete Type: general – SubjectFull: Performance evaluation Type: general – SubjectFull: Reliability in engineering Type: general – SubjectFull: Fracture toughness Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Data analysis Type: general Titles: – TitleFull: A comprehensive methodology to test the performance of Steel Fibre Reinforced Self-Compacting Concrete (SFR-SCC) Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ferrara, Liberato – PersonEntity: Name: NameFull: Bamonte, Patrick – PersonEntity: Name: NameFull: Caverzan, Alessio – PersonEntity: Name: NameFull: Musa, Abdisa – PersonEntity: Name: NameFull: Sanal, Irem IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 09500618 Titles: – TitleFull: Construction & Building Materials Type: main |
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