Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete
In order to solve the problem of low strength and easy cracking of shotcrete in permanent support of tunnel single shell lining, the effects of steel fiber-reinforced siliceous on mechanical properties of wet shotcrete were investigated by the tests of compressive strength, splitting tensile strengt...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/1637261 |
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| author | Xu Yan Li-min Liu Jin-peng Zhang Yan-hui Li He Wang |
| author_facet | Xu Yan Li-min Liu Jin-peng Zhang Yan-hui Li He Wang |
| author_sort | Xu Yan |
| collection | DOAJ |
| description | In order to solve the problem of low strength and easy cracking of shotcrete in permanent support of tunnel single shell lining, the effects of steel fiber-reinforced siliceous on mechanical properties of wet shotcrete were investigated by the tests of compressive strength, splitting tensile strength, flexural strength, shear strength, and bending toughness. The strength and the cracking resistance mechanism of steel fiber-reinforced siliceous wet shotcrete were analyzed by the bending toughness evaluation method. The results show that (1) the steel fiber-reinforced siliceous can improve splitting tensile, flexural, and shear capacity of the shotcrete, and the maximum growth rates were 77.42%, 72.73%, and 98.31%. The steel fiber plays a major role, and silica fume plays a subsidiarity role. (2) The effect of different types and contents of steel fibers on the compressive strength of wet shotcrete are not obvious. (3) The strengthening effect of shear undaform steel fiber on concrete is obviously better than that of shear flat steel fiber. (4) The flexural toughness of wet shotcrete with the silica content of 10% and the shear steel fiber of 60 kg/m3 is the best. |
| format | Article |
| id | doaj-art-857cbd4f53fc42fc847b72f7b545fa5b |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-857cbd4f53fc42fc847b72f7b545fa5b2025-08-20T03:37:47ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/16372611637261Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet ShotcreteXu Yan0Li-min Liu1Jin-peng Zhang2Yan-hui Li3He Wang4College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaIn order to solve the problem of low strength and easy cracking of shotcrete in permanent support of tunnel single shell lining, the effects of steel fiber-reinforced siliceous on mechanical properties of wet shotcrete were investigated by the tests of compressive strength, splitting tensile strength, flexural strength, shear strength, and bending toughness. The strength and the cracking resistance mechanism of steel fiber-reinforced siliceous wet shotcrete were analyzed by the bending toughness evaluation method. The results show that (1) the steel fiber-reinforced siliceous can improve splitting tensile, flexural, and shear capacity of the shotcrete, and the maximum growth rates were 77.42%, 72.73%, and 98.31%. The steel fiber plays a major role, and silica fume plays a subsidiarity role. (2) The effect of different types and contents of steel fibers on the compressive strength of wet shotcrete are not obvious. (3) The strengthening effect of shear undaform steel fiber on concrete is obviously better than that of shear flat steel fiber. (4) The flexural toughness of wet shotcrete with the silica content of 10% and the shear steel fiber of 60 kg/m3 is the best.http://dx.doi.org/10.1155/2018/1637261 |
| spellingShingle | Xu Yan Li-min Liu Jin-peng Zhang Yan-hui Li He Wang Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete Advances in Materials Science and Engineering |
| title | Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete |
| title_full | Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete |
| title_fullStr | Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete |
| title_full_unstemmed | Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete |
| title_short | Experimental Study on Basic Mechanical Properties of Steel Fiber-Reinforced Siliceous Wet Shotcrete |
| title_sort | experimental study on basic mechanical properties of steel fiber reinforced siliceous wet shotcrete |
| url | http://dx.doi.org/10.1155/2018/1637261 |
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