Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate
Hardened concrete due to brittleness, have low tensile strength and its strain tolerance is low. Low resistance of this material makes it more brittle. Light weight concrete which contains eager and brittle materials are subject to sudden failure at the time of loading. In order to increase ductilit...
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| Format: | Article |
| Language: | fas |
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Iranian Society of Structrual Engineering (ISSE)
2017-07-01
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| Series: | Journal of Structural and Construction Engineering |
| Subjects: | |
| Online Access: | https://www.jsce.ir/article_46856_4377480ad1b221a6b2b00c758e6fec10.pdf |
| _version_ | 1818858197204598784 |
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| author | Hooshang Dabbagh Hooman Mohammaddoost |
| author_facet | Hooshang Dabbagh Hooman Mohammaddoost |
| author_sort | Hooshang Dabbagh |
| collection | DOAJ |
| description | Hardened concrete due to brittleness, have low tensile strength and its strain tolerance is low. Low resistance of this material makes it more brittle. Light weight concrete which contains eager and brittle materials are subject to sudden failure at the time of loading. In order to increase ductility and prevent the spread of micro-cracks as well as appropriate continuity in the concrete, increasing the energy absorption capacity, reducing the structural weight against shock loads, steel fibers can be useful. The purpose of this paper is evaluation of the influences of steel fiber on mechanical characteristic of concrete at the age of 7 and 28 days. Steel fibers used in forms of corrugated shape with length to diameter ratio of 37.5 and smooth-end hook shape with length to diameter ratio of 50. The volume percent in various forms is 1% constant. To calculate the mechanical properties of concrete we used tensile strength tests (Brazilian and direct), and compressive strength tests. The results indicate that they increase flexural strength, especially tensile strength of concrete, but they don’t have significant effect on the compressive strength. |
| first_indexed | 2024-12-19T08:52:27Z |
| format | Article |
| id | doaj.art-ddf9fafda4694340bf7a5398e54d09ca |
| institution | Directory Open Access Journal |
| issn | 2476-3977 2538-2616 |
| language | fas |
| last_indexed | 2024-12-19T08:52:27Z |
| publishDate | 2017-07-01 |
| publisher | Iranian Society of Structrual Engineering (ISSE) |
| record_format | Article |
| series | Journal of Structural and Construction Engineering |
| spelling | doaj.art-ddf9fafda4694340bf7a5398e54d09ca2022-12-21T20:28:41ZfasIranian Society of Structrual Engineering (ISSE)Journal of Structural and Construction Engineering2476-39772538-26162017-07-014شماره ویژه 1172510.22065/jsce.2017.86897.120546856Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregateHooshang Dabbagh0Hooman Mohammaddoost1Assistant Professor, Department of Civil Engineering, University of Kurdistan, Sanandaj, IranPhD student in Structural Engineering, Department of Civil Engineering, University of Kurdistan, Sanandaj, IranHardened concrete due to brittleness, have low tensile strength and its strain tolerance is low. Low resistance of this material makes it more brittle. Light weight concrete which contains eager and brittle materials are subject to sudden failure at the time of loading. In order to increase ductility and prevent the spread of micro-cracks as well as appropriate continuity in the concrete, increasing the energy absorption capacity, reducing the structural weight against shock loads, steel fibers can be useful. The purpose of this paper is evaluation of the influences of steel fiber on mechanical characteristic of concrete at the age of 7 and 28 days. Steel fibers used in forms of corrugated shape with length to diameter ratio of 37.5 and smooth-end hook shape with length to diameter ratio of 50. The volume percent in various forms is 1% constant. To calculate the mechanical properties of concrete we used tensile strength tests (Brazilian and direct), and compressive strength tests. The results indicate that they increase flexural strength, especially tensile strength of concrete, but they don’t have significant effect on the compressive strength.https://www.jsce.ir/article_46856_4377480ad1b221a6b2b00c758e6fec10.pdffiber geometrylightweight concretemechanical propertiesscoria aggregatesteel fiber |
| spellingShingle | Hooshang Dabbagh Hooman Mohammaddoost Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate Journal of Structural and Construction Engineering fiber geometry lightweight concrete mechanical properties scoria aggregate steel fiber |
| title | Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate |
| title_full | Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate |
| title_fullStr | Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate |
| title_full_unstemmed | Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate |
| title_short | Influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with Scoria aggregate |
| title_sort | influence of fiber geometry on the mechanical properties of structural steel fiber lightweight concrete made with scoria aggregate |
| topic | fiber geometry lightweight concrete mechanical properties scoria aggregate steel fiber |
| url | https://www.jsce.ir/article_46856_4377480ad1b221a6b2b00c758e6fec10.pdf |
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