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Application of argon ion polishing-scanning electron microscope in the study of concrete microscopic pore structure
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WANG Tao1, CHEN Shengli2, 3, GE Xiangkun1
World Nuclear Geoscience | 2025, 42(1) : 196 - 202
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World Nuclear Geoscience | 2025, 42(1): 196-202
• RESEARCH ARTICALS •
Application of argon ion polishing-scanning electron microscope in the study of concrete microscopic pore structure
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WANG Tao1, CHEN Shengli2, 3, GE Xiangkun1
Affiliations
  • 1 Beijing Research Institute of Uranium Geology，Beijing 100029，China
  • 2 Railway Engineering Research Institute，China Academy of Railway Sciences Corporation Limited，Beijing 100081，China
  • 3 State Key Laboratory for Track Technology of High-speed Railway，Beijing 100081，China
Published: 2025-02-08 doi: 10.3969/j.issn.1672-0636.2025.01.017
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The microscopic pore structure is of great significance to the study of concrete materials. However，the traditional pore structure testing methods， such as nuclear magnetic resonance (NMR)，mercury intrusion porosimetry (MIP)，optical microscopy，X-ray tomography (X-CT)，and nitrogen adsorption，still have some limitations in terms of pore morphology and nanoscale pore characterization. In this study，we proposed to use argon ion polishing-scanning electron microscopy method to study the microscopic pore structure in concrete，prepared concrete samples with high-quality mechanically damage-free surfaces， and qualitatively investigated four types of pore structure in concrete. Large-area backscattered electron images were collected, and the pore porosity，pore diameter，pore shape factor，and graded porosity of the pore structure were quantified by ImageJ，Avizo，and other software. This method achieves the qualitative analysis and quantitative characterization of concrete microporous structure, which is of reference significance for the research and analysis of the microstructure of concrete materials.

argon-ion milling  /  scanning electron microscope  /  concrete  /  microscopic pore structure
WANG Tao, CHEN Shengli, GE Xiangkun. Application of argon ion polishing-scanning electron microscope in the study of concrete microscopic pore structure[J]. World Nuclear Geoscience, 2025 , 42 (1) : 196 -202 . DOI: 10.3969/j.issn.1672-0636.2025.01.017
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  • (2022YJ119)
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Year 2025 volume 42 Issue 1
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Article Info
doi: 10.3969/j.issn.1672-0636.2025.01.017
  • Receive Date：2025-01-01
  • Online Date：2025-11-07
  • Published：2025-02-08
Article Data
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History
  • Received：2025-01-01
  • Revised：2025-01-18
Funding
(2022YJ119)
Affiliations
    1 Beijing Research Institute of Uranium Geology，Beijing 100029，China
    2 Railway Engineering Research Institute，China Academy of Railway Sciences Corporation Limited，Beijing 100081，China
    3 State Key Laboratory for Track Technology of High-speed Railway，Beijing 100081，China
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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
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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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