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Test Study on Macro-meso Relationship of Concrete with Different Fiber Content Under Freeze-thaw Cycle
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Qiang FU1, 2, Qi TAO1, 2, Xi-bin GUAN1, 2, Jian-xiong FAN3, Yue-shi WANG4
Water Resources and Power | 2023, 41(2) : 159 - 162
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Water Resources and Power | 2023, 41(2): 159-162
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Test Study on Macro-meso Relationship of Concrete with Different Fiber Content Under Freeze-thaw Cycle
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Qiang FU1, 2, Qi TAO1, 2, Xi-bin GUAN1, 2, Jian-xiong FAN3, Yue-shi WANG4
Affiliations
  • 1.China Railway 19th Bureau Group Sixth Engneering Co., Ltd., Wuxi 214028, China
  • 2.Jiangsu Prefabricated Building Green Intelligent Manufacturing and Construction Engineering Technology Research Center, Changzhou 213372, China
  • 3.China Railway Shanghai Bureau Group Co., Ltd., Shanghai 200071, China
  • 4.College of Transportation Engineering, Huaiyin Institute of Technology, Huaian 223003, China
Published: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2023.20220921
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In order to explore the relationship between macro and micro characteristics of hybrid fiber reinforced concrete under freeze-thaw cycles, rapid freeze-thaw cycle tests were carried out with freeze-thaw cycles and fiber volume content as variables. The test results show that under different freeze-thaw cycles, the compressive strength has a positive correlation with air content, bubble spacing coefficient and average chord length of bubbles, and a negative correlation with specific surface area of pores, while the freeze-thaw damage and pore parameters have an opposite law, and they all change approximately linearly; The larger the freeze-thaw cycles, the lower the compressive strength, the greater the freeze-thaw damage, the greater the air content, the bubble spacing coefficient and the average chord length of bubbles, and the smaller the specific surface area of pores; The incorporation of hybrid fibers optimizes the pore structure and improves the frost resistance.

hybrid fiber concrete  /  freeze thaw cycle  /  pore structure  /  macro-meso relationship  /  compressive strength  /  freeze thaw damage
Qiang FU, Qi TAO, Xi-bin GUAN, Jian-xiong FAN, Yue-shi WANG. Test Study on Macro-meso Relationship of Concrete with Different Fiber Content Under Freeze-thaw Cycle[J]. Water Resources and Power, 2023 , 41 (2) : 159 -162 . DOI: 10.20040/j.cnki.1000-7709.2023.20220921
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20220921
  • Receive Date：2022-05-05
  • Online Date：2026-01-27
  • Published：2023-02-25
Article Data
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History
  • Received：2022-05-05
  • Revised：2022-06-15
Funding
Affiliations
    1.China Railway 19th Bureau Group Sixth Engneering Co., Ltd., Wuxi 214028, China
    2.Jiangsu Prefabricated Building Green Intelligent Manufacturing and Construction Engineering Technology Research Center, Changzhou 213372, China
    3.China Railway Shanghai Bureau Group Co., Ltd., Shanghai 200071, China
    4.College of Transportation Engineering, Huaiyin Institute of Technology, Huaian 223003, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20220921
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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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