Durability properties of concrete reinforced with steel-polypropylene hybrid fibers

In this study, some mechanical and durability properties of concrete specimens, with a water/cement (w/c) ratio of 0.47 and having a reference slump of 40 mm, produced by addition of steel fibers (SF) and/or polypropylene fibers (PF), were investigated. The additions of SF were 20 kg/m3 and 40 kg/m3...

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Main Authors: Köksal Fuat, Gencel Osman, Unal Burhan, Durgun Muhammed Yasin
Format: Article
Language:English
Published: De Gruyter 2012-03-01
Series:Science and Engineering of Composite Materials
Subjects:
Online Access:https://doi.org/10.1515/secm.2011.0064
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spelling doaj-ca36a39e59064e29b0daf75e8def227c2021-09-05T14:00:34ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592012-03-01191192710.1515/secm.2011.0064Durability properties of concrete reinforced with steel-polypropylene hybrid fibersKöksal Fuat0Gencel Osman1Unal Burhan2Durgun Muhammed Yasin3Department of Civil Engineering, Faculty of Engineering and Architecture, Bozok University, 66000 Yozgat, TurkeyDepartment of Civil Engineering, Faculty of Engineering, Bartin University, 74100 Bartın, TurkeyDepartment of Civil Engineering, Faculty of Engineering and Architecture, Bozok University, 66000 Yozgat, TurkeyDepartment of Civil Engineering, Faculty of Engineering, Bartin University, 74100 Bartın, TurkeyIn this study, some mechanical and durability properties of concrete specimens, with a water/cement (w/c) ratio of 0.47 and having a reference slump of 40 mm, produced by addition of steel fibers (SF) and/or polypropylene fibers (PF), were investigated. The additions of SF were 20 kg/m3 and 40 kg/m3 and PF additions were 0.3 kg/m3 and 0.6 kg/m3. Workability and unit weight tests were made on fresh concretes. Compressive stress, elastic modulus, and flexural tensile tests were performed on hardened concretes. Also, load-deflection curves and toughness indices were obtained during a three-point flexure tensile test. Freeze-thaw, abrasion and drying shrinkage tests were also carried out to determine the effects of SF and/or PF on some durability properties of concretes. It was observed that fiber inclusion to concrete decreases the workability and that the mechanical properties of concrete can be improved by the addition of fibers. Using hybrid fibers in the concrete both increases and decreases some mechanical properties of concrete. In order to see a greater effect of both SF and PF on the properties of concrete, different hybrid fiber volume fractions for different matrix strengths may be examined, since fiber type and fiber volume fractions are important parameters to be taken into account in the mix design of concrete for the performancehttps://doi.org/10.1515/secm.2011.0064durabilityhybrid fiber concretemechanical propertiespolypropylene fibersteel fiber
collection DOAJ
language English
format Article
sources DOAJ
author Köksal Fuat
Gencel Osman
Unal Burhan
Durgun Muhammed Yasin
spellingShingle Köksal Fuat
Gencel Osman
Unal Burhan
Durgun Muhammed Yasin
Durability properties of concrete reinforced with steel-polypropylene hybrid fibers
Science and Engineering of Composite Materials
durability
hybrid fiber concrete
mechanical properties
polypropylene fiber
steel fiber
author_facet Köksal Fuat
Gencel Osman
Unal Burhan
Durgun Muhammed Yasin
author_sort Köksal Fuat
title Durability properties of concrete reinforced with steel-polypropylene hybrid fibers
title_short Durability properties of concrete reinforced with steel-polypropylene hybrid fibers
title_full Durability properties of concrete reinforced with steel-polypropylene hybrid fibers
title_fullStr Durability properties of concrete reinforced with steel-polypropylene hybrid fibers
title_full_unstemmed Durability properties of concrete reinforced with steel-polypropylene hybrid fibers
title_sort durability properties of concrete reinforced with steel-polypropylene hybrid fibers
publisher De Gruyter
series Science and Engineering of Composite Materials
issn 0792-1233
2191-0359
publishDate 2012-03-01
description In this study, some mechanical and durability properties of concrete specimens, with a water/cement (w/c) ratio of 0.47 and having a reference slump of 40 mm, produced by addition of steel fibers (SF) and/or polypropylene fibers (PF), were investigated. The additions of SF were 20 kg/m3 and 40 kg/m3 and PF additions were 0.3 kg/m3 and 0.6 kg/m3. Workability and unit weight tests were made on fresh concretes. Compressive stress, elastic modulus, and flexural tensile tests were performed on hardened concretes. Also, load-deflection curves and toughness indices were obtained during a three-point flexure tensile test. Freeze-thaw, abrasion and drying shrinkage tests were also carried out to determine the effects of SF and/or PF on some durability properties of concretes. It was observed that fiber inclusion to concrete decreases the workability and that the mechanical properties of concrete can be improved by the addition of fibers. Using hybrid fibers in the concrete both increases and decreases some mechanical properties of concrete. In order to see a greater effect of both SF and PF on the properties of concrete, different hybrid fiber volume fractions for different matrix strengths may be examined, since fiber type and fiber volume fractions are important parameters to be taken into account in the mix design of concrete for the performance
topic durability
hybrid fiber concrete
mechanical properties
polypropylene fiber
steel fiber
url https://doi.org/10.1515/secm.2011.0064
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