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Mechanical and Interface Properties of Steel Fiber Reinforced Shotcrete Containing Different Setting Accelerators
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Luping ZENG1, Min QIAO1, Wei WANG1, Shuang ZHAO1, Xiaolei ZHANG1, Qianping RAN2, Jinxiang HONG1
Journal of the Chinese Ceramic Society | 2020, 48(5) : 659 - 664
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Journal of the Chinese Ceramic Society | 2020, 48(5): 659-664
Mechanical and Interface Properties of Steel Fiber Reinforced Shotcrete Containing Different Setting Accelerators
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Luping ZENG1, Min QIAO1, Wei WANG1, Shuang ZHAO1, Xiaolei ZHANG1, Qianping RAN2, Jinxiang HONG1
Affiliations
  • 1.State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co., Ltd., Nanjing 211103, China
  • 2.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

    • ZENG Luping (1993-), male, Master, Assistant Engineer. E-mail:

About Author:

ZENG Luping (1993-), male, Master, Assistant Engineer. E-mail:

Published: 2020-05-20 doi: 10.14062/j.issn.0454-5648.20190716
Outline
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The mechanical properties and flexural toughness behaviors of steel fiber reinforced shotcrete containing different liquid setting accerlerators were evaluated by a three-pointing loading method. To clarify the working mechanism of liquid setting accelerators on the toughness properties of steel fiber, the early-age strength development and steel fiber-cement matrix interface area micromorphology of steel fiber reinforced mortar with the similar material composition were investigated. The results show that the long-term mechanical strength of steel fiber reinforced shotcrete with alkali-free accelerator is greater than that with alkaline setting accelerator, thus leading to a full loading-deflection curve and better toughness enhancement effect of steel fiber. For the early-age strength development, short prismatic ettringite and needle-like C-S-H gel appear after introducing alkali-free setting accelerator, thus inducing the better bonding strength between steel fiber and cement matrix and improving the initial support capacity of steel fiber reinforced shotcrete.

steel reinforced shotcrete  /  liquid setting accelerator  /  load-deflection  /  bonding interface area
曾鲁平, 乔敏, 王伟, 赵爽, 张小磊, 冉千平, 洪锦祥. 速凝剂种类对钢纤维喷射混凝土力学及界面性能影响. 硅酸盐学报, 2020 , 48 (5) : 659 -664 . DOI: 10.14062/j.issn.0454-5648.20190716
Luping ZENG, Min QIAO, Wei WANG, Shuang ZHAO, Xiaolei ZHANG, Qianping RAN, Jinxiang HONG. Mechanical and Interface Properties of Steel Fiber Reinforced Shotcrete Containing Different Setting Accelerators[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 659 -664 . DOI: 10.14062/j.issn.0454-5648.20190716
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Year 2020 volume 48 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20190716
  • Receive Date：2019-10-30
  • Online Date：2026-10-29
  • Published：2020-05-20
Article Data
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History
  • Received：2019-10-30
  • Revised：2019-11-26
Funding
Affiliations
    1.State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co., Ltd., Nanjing 211103, China
    2.School of Materials Science and Engineering, Southeast University, Nanjing 211189, China

Corresponding:

QIAO Min (1984-), male, Ph.D., Senior Engineer. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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