Influence of steel fibre reinforcement on the workability of self-compacting concrete

Document identifier: oai:DiVA.org:ltu-7618
Keyword: Engineering and Technology, Civil Engineering, Infrastructure Engineering, Teknik och teknologier, Samhällsbyggnadsteknik, Infrastrukturteknik, Structural Engineering, Konstruktionsteknik
Publication year: 2000
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Abstract:

This study consists of results of workability tests for concrete mixes using various amounts and types of steel fibres. The mixes are proportioned using the addition of filler and superplasticizer in order to obtain Self-Compacting Concrete (SCC) before addition of fibres. The test methods that have been used are the slump flow test and a modified L-box test. The results show the general correlation between the measured workability parameters and fibre volume and shape. The results show that the type of concrete mix used clearly affects the relative behaviour of using various types and amounts of steel fibres. In some of the mixes the influence of fibres can be detected by a decrease in flowability as the fibre amount or fibre aspect ratio increase. However, in the case of well-proportioned SCC the workability is not influenced by the steel fibres added within realistic amounts, i.e. 60 kg/m exp 3 for a fibre aspect ratio up to 100. The tests imply therefore, that it is quite feasible to use fibres in combination with SCC for structural applications.

Authors

Patrik Groth

Luleå tekniska universitet
Other publications >>

Håkan Thun

Other publications >>

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    header: 
        identifier: oai:DiVA.org:ltu-7618
        datestamp: 2021-04-19T13:00:40Z
        setSpec: SwePub-ltu
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                version: 3.7
            recordInfo: 
                recordContentSource: ltu
                recordCreationDate: 2016-09-29
            identifier: 
                http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-7618
                603a4910-b9c5-11db-b560-000ea68e967b
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Influence of steel fibre reinforcement on the workability of self-compacting concrete
            abstract: 
This study consists of results of workability tests for concrete mixes using various amounts and types of steel fibres. The mixes are proportioned using the addition of filler and superplasticizer in order to obtain Self-Compacting Concrete (SCC) before addition of fibres. The test methods that have been used are the slump flow test and a modified L-box test. The results show the general correlation between the measured workability parameters and fibre volume and shape. The results show that the type of concrete mix used clearly affects the relative behaviour of using various types and amounts of steel fibres. In some of the mixes the influence of fibres can be detected by a decrease in flowability as the fibre amount or fibre aspect ratio increase. However in the case of well-proportioned SCC the workability is not influenced by the steel fibres added within realistic amounts i.e. 60 kg/m exp 3 for a fibre aspect ratio up to 100. The tests imply therefore that it is quite feasible to use fibres in combination with SCC for structural applications.

            subject: 
                    @attributes: 
                        lang: eng
                        authority: uka.se
                    topic: 
                        Engineering and Technology
                        Civil Engineering
                        Infrastructure Engineering
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Teknik och teknologier
                        Samhällsbyggnadsteknik
                        Infrastrukturteknik
                    @attributes: 
                        lang: eng
                        authority: ltu
                    topic: Structural Engineering
                    genre: Research subject
                    @attributes: 
                        lang: swe
                        authority: ltu
                    topic: Konstruktionsteknik
                    genre: Research subject
            language: 
                languageTerm: eng
            genre: 
                publication/journal-article
                ref
            note: 
                Published
                2
                Godkänd; 2000; 20070211 (ysko)
            name: 
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                        type: personal
                    namePart: 
                        Groth
                        Patrik
                    role: 
                        roleTerm: aut
                    affiliation: Luleå tekniska universitet
                    @attributes: 
                        type: personal
                        authority: ltu
                    namePart: 
                        Thun
                        Håkan
                    role: 
                        roleTerm: aut
                    nameIdentifier: thun
            originInfo: 
                dateIssued: 2000
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                    type: host
                titleInfo: 
                    title: Concrete Science and Engineering
                identifier: 1295-2826
                part: 
                    detail: 
                            @attributes: 
                                type: volume
                            number: 2
                            @attributes: 
                                type: issue
                            number: 6
                    extent: 
                        start: 65
                        end: 70
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                form: print
            typeOfResource: text