Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete
In order to study the static and dynamic mechanical characteristics of the coal gangue concrete used in the mine support structure, the compressive strength test, the drop weight impact test, and the Split Hopkinson Pressure Bar (SHPB) test were conducted. The compressive strength, initial and final...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8874191 |
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| author | Zhishu Yao Yu Fang Weihao Kong Xianwen Huang Xuesong Wang |
| author_facet | Zhishu Yao Yu Fang Weihao Kong Xianwen Huang Xuesong Wang |
| author_sort | Zhishu Yao |
| collection | DOAJ |
| description | In order to study the static and dynamic mechanical characteristics of the coal gangue concrete used in the mine support structure, the compressive strength test, the drop weight impact test, and the Split Hopkinson Pressure Bar (SHPB) test were conducted. The compressive strength, initial and final impacting energy, dynamic strength, and failure characteristic of concrete were obtained of the concrete single-doped with coal gangue coarse aggregate, single-doped with coal gangue fine aggregate, and codoped with coal gangue coarse and fine aggregates. The results show that (1) it is feasible that employing coal gangue to replace natural coarse and fine aggregates in concrete can prepare C30 and C40 concrete; (2) the addition of coal gangue fine aggregate has a positive effect on the impact energy of the initial and final cracks of concrete, while the addition of coal gangue coarse aggregate has a negative effect on it; (3) compared with the static strength, the dynamic strength of concrete is improved no matter whether coal gangue is added to concrete; (4) the incorporation of coal gangue coarse aggregate will make the concrete shear surface smooth; (5) at the given impacting pressure, the concrete with coal gangue coarse aggregate has greater particle breakage and those with coal gangue fine aggregate has less. The research of this study can be a reference for the application of gangue concrete in mine support structures. |
| format | Article |
| id | doaj-art-a64e302f66cd4bbe9edff258fb527ee7 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-a64e302f66cd4bbe9edff258fb527ee72025-02-03T06:46:47ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/88741918874191Experimental Study on Dynamic Mechanical Properties of Coal Gangue ConcreteZhishu Yao0Yu Fang1Weihao Kong2Xianwen Huang3Xuesong Wang4School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, Anhui, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, Anhui, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, Anhui, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, Anhui, ChinaSchool of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan, Anhui, ChinaIn order to study the static and dynamic mechanical characteristics of the coal gangue concrete used in the mine support structure, the compressive strength test, the drop weight impact test, and the Split Hopkinson Pressure Bar (SHPB) test were conducted. The compressive strength, initial and final impacting energy, dynamic strength, and failure characteristic of concrete were obtained of the concrete single-doped with coal gangue coarse aggregate, single-doped with coal gangue fine aggregate, and codoped with coal gangue coarse and fine aggregates. The results show that (1) it is feasible that employing coal gangue to replace natural coarse and fine aggregates in concrete can prepare C30 and C40 concrete; (2) the addition of coal gangue fine aggregate has a positive effect on the impact energy of the initial and final cracks of concrete, while the addition of coal gangue coarse aggregate has a negative effect on it; (3) compared with the static strength, the dynamic strength of concrete is improved no matter whether coal gangue is added to concrete; (4) the incorporation of coal gangue coarse aggregate will make the concrete shear surface smooth; (5) at the given impacting pressure, the concrete with coal gangue coarse aggregate has greater particle breakage and those with coal gangue fine aggregate has less. The research of this study can be a reference for the application of gangue concrete in mine support structures.http://dx.doi.org/10.1155/2020/8874191 |
| spellingShingle | Zhishu Yao Yu Fang Weihao Kong Xianwen Huang Xuesong Wang Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete Advances in Materials Science and Engineering |
| title | Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete |
| title_full | Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete |
| title_fullStr | Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete |
| title_full_unstemmed | Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete |
| title_short | Experimental Study on Dynamic Mechanical Properties of Coal Gangue Concrete |
| title_sort | experimental study on dynamic mechanical properties of coal gangue concrete |
| url | http://dx.doi.org/10.1155/2020/8874191 |
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