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Characterization of ITZ in Cement-based Materials by Mercury Intrusion Porosimetery and X-ray Computed Tomography
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Yi ZHU1, 2, Rijiao YANG1, 3, Yu PENG1, Wenhao PANG1, Qiang ZENG1
Journal of the Chinese Ceramic Society | 2022, 50(8) : 2136 - 2144
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Journal of the Chinese Ceramic Society | 2022, 50(8): 2136-2144
• Research Articles •
Characterization of ITZ in Cement-based Materials by Mercury Intrusion Porosimetery and X-ray Computed Tomography
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Yi ZHU1, 2, Rijiao YANG1, 3, Yu PENG1, Wenhao PANG1, Qiang ZENG1
Affiliations
  • 1.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
  • 2.Center for Balance Architecture, Zhejiang University, Hangzhou 310058, China
  • 3.The Architectural Design and Research Institute of Zhejiang University Co., Ltd., Hangzhou 310028, China

    • ZHU Yi (1999-), female, Doctoral candidate. E-mail:

About Author:

ZHU Yi (1999-), female, Doctoral candidate. E-mail:

Published: 2022-08-20 doi: 10.14062/j.issn.0454-5648.20211152
Outline
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Interfacial transition zone (ITZ) between cement matrix and aggregate is regarded as a weak phase that affects the mechanical properties and durability performance of concrete. Therefore, resolving ITZ around aggregate has always attracted great attentions in concrete research. Due to the limitation of resolution, using industrial X-ray computed tomography (XCT) to address three-dimensional (3D) morphology of ITZ becomes a challenge. However, the extremely high X-ray attenuation of mercury can greatly increase the contrast of XCT images when the pores of ITZ are filled with mercury. This regime allows visual characterization of ITZ for cement-based materials after mercury intrusion porosimetery (MIP). A glass rod was used as an aggregate to fabricate connected matrix-aggregate ITZs. The results show that the residual mercury droplets in pores after MIP enhance the gray values of ITZ, thus addressing the 3D structure of ITZ. The findings provide a new path to exploring the pore structure of matrix-aggregate ITZ in cement-based materials.

interfacial transition zone  /  pore structure  /  mercury intrusion porosimetry  /  X-ray computed tomography
朱逸, 杨日交, 彭宇, 潘文豪, 曾强. 水泥基材料界面过渡区的压汞法联合X射线断层扫描表征. 硅酸盐学报, 2022 , 50 (8) : 2136 -2144 . DOI: 10.14062/j.issn.0454-5648.20211152
Yi ZHU, Rijiao YANG, Yu PENG, Wenhao PANG, Qiang ZENG. Characterization of ITZ in Cement-based Materials by Mercury Intrusion Porosimetery and X-ray Computed Tomography[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (8) : 2136 -2144 . DOI: 10.14062/j.issn.0454-5648.20211152
Appendix
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Year 2022 volume 50 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20211152
  • Receive Date：2021-12-28
  • Online Date：2026-10-20
  • Published：2022-08-20
Article Data
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History
  • Received：2021-12-28
  • Revised：2022-01-20
Funding
Affiliations
    1.College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
    2.Center for Balance Architecture, Zhejiang University, Hangzhou 310058, China
    3.The Architectural Design and Research Institute of Zhejiang University Co., Ltd., Hangzhou 310028, China

Corresponding:

ZENG Qiang (1983-), male, Ph.D., Associate Professor. 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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