Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in construction
Fibre-reinforced concrete is increasingly employed in construction in recent times. Adding steel fibres to self-compacting concrete (SCC) increases the latter’s strength and toughness but does not confer the SCC mix with the desired flow properties. When more than one type of fibres is added to the...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522004065 |
| _version_ | 1811345312422297600 |
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| author | Ramkumar K.B. Kannan Rajkumar P.R. |
| author_facet | Ramkumar K.B. Kannan Rajkumar P.R. |
| author_sort | Ramkumar K.B. |
| collection | DOAJ |
| description | Fibre-reinforced concrete is increasingly employed in construction in recent times. Adding steel fibres to self-compacting concrete (SCC) increases the latter’s strength and toughness but does not confer the SCC mix with the desired flow properties. When more than one type of fibres is added to the concrete mix in appropriate proportions, its mechanical properties improve. Research on the impact of hybrid fibres on concrete’s mechanical properties is sparse. Therefore, in this paper, the workability of high-flowable 60 and 80 MPa SCC prepared using hybrid steel fibres is studied. The experimental results are then compared with the output obtained from the regression model that was developed. We found that the addition of 0.40 % and 0.10 % of hybrid hooked and micro-steel fibres improves the performance of the fresh and hardened concrete. The values for split tensile, flexural strength and elastic modulus in the regression model developed were found to be in consonance with their experimental values. |
| first_indexed | 2024-04-13T20:01:16Z |
| format | Article |
| id | doaj.art-758fefd63e3e47ab80f257ceb80e99be |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-13T20:01:16Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-758fefd63e3e47ab80f257ceb80e99be2022-12-22T02:32:12ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01274Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in constructionRamkumar K.B.0Kannan Rajkumar P.R.1Department of Civil Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, IndiaCorresponding author.; Department of Civil Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, IndiaFibre-reinforced concrete is increasingly employed in construction in recent times. Adding steel fibres to self-compacting concrete (SCC) increases the latter’s strength and toughness but does not confer the SCC mix with the desired flow properties. When more than one type of fibres is added to the concrete mix in appropriate proportions, its mechanical properties improve. Research on the impact of hybrid fibres on concrete’s mechanical properties is sparse. Therefore, in this paper, the workability of high-flowable 60 and 80 MPa SCC prepared using hybrid steel fibres is studied. The experimental results are then compared with the output obtained from the regression model that was developed. We found that the addition of 0.40 % and 0.10 % of hybrid hooked and micro-steel fibres improves the performance of the fresh and hardened concrete. The values for split tensile, flexural strength and elastic modulus in the regression model developed were found to be in consonance with their experimental values.http://www.sciencedirect.com/science/article/pii/S2214509522004065Self-compacting concreteHybrid steel fibreMechanical propertiesFlowability, Regression |
| spellingShingle | Ramkumar K.B. Kannan Rajkumar P.R. Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in construction Case Studies in Construction Materials Self-compacting concrete Hybrid steel fibre Mechanical properties Flowability, Regression |
| title | Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in construction |
| title_full | Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in construction |
| title_fullStr | Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in construction |
| title_full_unstemmed | Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in construction |
| title_short | Reinforcing self-compacting concrete with hybrid hooked-end and micro-steel fibres for improving workability and preventing cracks in construction |
| title_sort | reinforcing self compacting concrete with hybrid hooked end and micro steel fibres for improving workability and preventing cracks in construction |
| topic | Self-compacting concrete Hybrid steel fibre Mechanical properties Flowability, Regression |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522004065 |
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