Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts
Concrete is a brittle material, especially under tension. Intensive researches have been reported to add various types of fibres into concrete mix to increase its ductility. Recently, the authors proposed a new type of steel fibre with spiral shape to reinforce concrete material. Laboratory tests on...
| Main Authors: | , , |
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| Format: | Conference Paper |
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Trans Tech Publications Ltd
2015
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| Online Access: | http://purl.org/au-research/grants/arc/DP130104332 http://hdl.handle.net/20.500.11937/31273 |
| _version_ | 1848753332145881088 |
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| author | Hao, Y. Hao, Hong Chen, G. |
| author_facet | Hao, Y. Hao, Hong Chen, G. |
| author_sort | Hao, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Concrete is a brittle material, especially under tension. Intensive researches have been reported to add various types of fibres into concrete mix to increase its ductility. Recently, the authors proposed a new type of steel fibre with spiral shape to reinforce concrete material. Laboratory tests on concrete cylinder specimens demonstrated that compared to other fibre types such as the hooked-end, deformed and corrugated fibres the new fibres have larger displacement capacity and provide better bonding with the concrete. This study performs drop-weight impact tests to investigate the behaviour of concrete beams reinforced by different types of steel fibres. The quasi-static compressive and split tensile tests were also conducted to obtain the static properties of plain concrete and steel fibre reinforced concrete (FRC) materials. The quasi-static tests were carried out using hydraulic testing machine and the impact tests were conducted using an instrumented drop-weight testing system. Plain concrete and concrete reinforced by the commonly used hooked-end steel fibres and the proposed spiral-shaped steel fibres were tested in this study. The volume dosage of 1% fibre was used to prepare all FRC specimens. Repeated drop-weight impacts were applied to the beam specimens until total collapse. A 15.2 kg hard steel was used as the drop-weight impactor. A drop height of 0.5 m was considered in performing the impact tests. The force-displacement relations and the energy absorption capabilities of plain concrete and FRC beams were obtained, compared and discussed. The advantage and effectiveness of the newly proposed spiral-shaped steel fibres in increasing the performance of FRC beam elements under impact loads were examined. |
| first_indexed | 2025-11-14T08:22:50Z |
| format | Conference Paper |
| id | curtin-20.500.11937-31273 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:22:50Z |
| publishDate | 2015 |
| publisher | Trans Tech Publications Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-312732022-10-12T02:34:54Z Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts Hao, Y. Hao, Hong Chen, G. Concrete is a brittle material, especially under tension. Intensive researches have been reported to add various types of fibres into concrete mix to increase its ductility. Recently, the authors proposed a new type of steel fibre with spiral shape to reinforce concrete material. Laboratory tests on concrete cylinder specimens demonstrated that compared to other fibre types such as the hooked-end, deformed and corrugated fibres the new fibres have larger displacement capacity and provide better bonding with the concrete. This study performs drop-weight impact tests to investigate the behaviour of concrete beams reinforced by different types of steel fibres. The quasi-static compressive and split tensile tests were also conducted to obtain the static properties of plain concrete and steel fibre reinforced concrete (FRC) materials. The quasi-static tests were carried out using hydraulic testing machine and the impact tests were conducted using an instrumented drop-weight testing system. Plain concrete and concrete reinforced by the commonly used hooked-end steel fibres and the proposed spiral-shaped steel fibres were tested in this study. The volume dosage of 1% fibre was used to prepare all FRC specimens. Repeated drop-weight impacts were applied to the beam specimens until total collapse. A 15.2 kg hard steel was used as the drop-weight impactor. A drop height of 0.5 m was considered in performing the impact tests. The force-displacement relations and the energy absorption capabilities of plain concrete and FRC beams were obtained, compared and discussed. The advantage and effectiveness of the newly proposed spiral-shaped steel fibres in increasing the performance of FRC beam elements under impact loads were examined. 2015 Conference Paper http://hdl.handle.net/20.500.11937/31273 10.4028/www.scientific.net/KEM.626.311 http://purl.org/au-research/grants/arc/DP130104332 Trans Tech Publications Ltd restricted |
| spellingShingle | Hao, Y. Hao, Hong Chen, G. Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts |
| title | Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts |
| title_full | Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts |
| title_fullStr | Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts |
| title_full_unstemmed | Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts |
| title_short | Experimental tests of steel fibre reinforced concrete beams under drop-weight impacts |
| title_sort | experimental tests of steel fibre reinforced concrete beams under drop-weight impacts |
| url | http://purl.org/au-research/grants/arc/DP130104332 http://hdl.handle.net/20.500.11937/31273 |