Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blended
Abstract The brittle behavior of concrete can be compensated by the addition of reinforcements, providing benefits such as improved crack control, residual strength and increased flexural strength. It is usual to apply mono fibers to concrete, but their positioning in the matrix may not be homogeneo...
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| Format: | Article |
| Language: | English |
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Instituto Brasileiro do Concreto (IBRACON)
2020-07-01
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| Series: | Revista IBRACON de Estruturas e Materiais |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000300464&tlng=en |
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| author | A. L. BAUER H. EHRENBRING D. SCHNEIDER U. C. M. QUININO B. TUTIKIAN |
| author_facet | A. L. BAUER H. EHRENBRING D. SCHNEIDER U. C. M. QUININO B. TUTIKIAN |
| author_sort | A. L. BAUER |
| collection | DOAJ |
| description | Abstract The brittle behavior of concrete can be compensated by the addition of reinforcements, providing benefits such as improved crack control, residual strength and increased flexural strength. It is usual to apply mono fibers to concrete, but their positioning in the matrix may not be homogeneous, consequently increasing the susceptibility to fracture planes with fewer reinforcements. This study aimed to evaluate the use and behavior of simple (mono) and space (3D) steel fibers (SE), in order to achieve a more homogeneous mixture, increase the effectiveness of fibers in restricting cracks and improve mechanical properties. The fresh-state was assessed through slump and VeBe tests, whereas the hardened-state tests comprised axial compressive strength, flexural strength and the flexural toughness factor. The volume content of simple and space fibers varied from 0 to 0.93%. Based on the results, it can be stated that space and simple fiber contents improved rheological and mechanical properties of the composite in isolated (0.29%) and hybrid (0.64%) combinations, since their overall performance exceeded the other mixtures’. However, space fibers caused considerable workability losses compared to the conventional concrete, hindering its casting and harming its hardened-state properties. |
| first_indexed | 2024-04-11T17:12:14Z |
| format | Article |
| id | doaj.art-c1a97c422ad84de2a1637f8aa8c7d6dd |
| institution | Directory Open Access Journal |
| issn | 1983-4195 |
| language | English |
| last_indexed | 2024-04-11T17:12:14Z |
| publishDate | 2020-07-01 |
| publisher | Instituto Brasileiro do Concreto (IBRACON) |
| record_format | Article |
| series | Revista IBRACON de Estruturas e Materiais |
| spelling | doaj.art-c1a97c422ad84de2a1637f8aa8c7d6dd2022-12-22T04:12:52ZengInstituto Brasileiro do Concreto (IBRACON)Revista IBRACON de Estruturas e Materiais1983-41952020-07-0113346448210.1590/s1983-41952020000300002Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blendedA. L. BAUERhttps://orcid.org/0000-0002-7633-618XH. EHRENBRINGhttps://orcid.org/0000-0002-0339-9825D. SCHNEIDERhttps://orcid.org/0000-0002-8810-460XU. C. M. QUININOhttps://orcid.org/0000-0002-6488-9828B. TUTIKIANhttps://orcid.org/0000-0003-1319-0547Abstract The brittle behavior of concrete can be compensated by the addition of reinforcements, providing benefits such as improved crack control, residual strength and increased flexural strength. It is usual to apply mono fibers to concrete, but their positioning in the matrix may not be homogeneous, consequently increasing the susceptibility to fracture planes with fewer reinforcements. This study aimed to evaluate the use and behavior of simple (mono) and space (3D) steel fibers (SE), in order to achieve a more homogeneous mixture, increase the effectiveness of fibers in restricting cracks and improve mechanical properties. The fresh-state was assessed through slump and VeBe tests, whereas the hardened-state tests comprised axial compressive strength, flexural strength and the flexural toughness factor. The volume content of simple and space fibers varied from 0 to 0.93%. Based on the results, it can be stated that space and simple fiber contents improved rheological and mechanical properties of the composite in isolated (0.29%) and hybrid (0.64%) combinations, since their overall performance exceeded the other mixtures’. However, space fibers caused considerable workability losses compared to the conventional concrete, hindering its casting and harming its hardened-state properties.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000300464&tlng=enfiber-reinforced concretespace fibersimple fibershybrid mixtures |
| spellingShingle | A. L. BAUER H. EHRENBRING D. SCHNEIDER U. C. M. QUININO B. TUTIKIAN Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blended Revista IBRACON de Estruturas e Materiais fiber-reinforced concrete space fiber simple fibers hybrid mixtures |
| title | Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blended |
| title_full | Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blended |
| title_fullStr | Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blended |
| title_full_unstemmed | Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blended |
| title_short | Evaluation of the impact of two types of steel fibers (SE), mono and 3D, on concrete properties, when added isolated or blended |
| title_sort | evaluation of the impact of two types of steel fibers se mono and 3d on concrete properties when added isolated or blended |
| topic | fiber-reinforced concrete space fiber simple fibers hybrid mixtures |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952020000300464&tlng=en |
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