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Strength characterization of hydrated cement paste at micro-scale
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Zhi GE1, Nengdong JIANG1, Hongzhi ZHANG1, 2, Dongshuai HOU3, Erik SCHLANGEN4, Branko ŠAVIJA4
Journal of the Chinese Ceramic Society | 2021, 49(5) : 887 - 892
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Journal of the Chinese Ceramic Society | 2021, 49(5): 887-892
• Research Article •
Strength characterization of hydrated cement paste at micro-scale
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Zhi GE1, Nengdong JIANG1, Hongzhi ZHANG1, 2, Dongshuai HOU3, Erik SCHLANGEN4, Branko ŠAVIJA4
Affiliations
  • 1.School of Qilu Transportation, Shandong University, Ji'nan 250100, China
  • 2.Suzhou Research Institute, Shandong University, Suzhou 215021, Jiangsu, China
  • 3.School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, Shandong, China
  • 4.Faculty of Civil Engineering and Geosciences, Delft University of Technology, 2628 CN, Delft, the Netherlands

    • GE Zhi (1977-), male, Ph.D., Professor. E-mail:

About Author:

GE Zhi (1977-), male, Ph.D., Professor. E-mail:

Published: 2021-05-20 doi: 10.14062/j.issn.0454-5648.20200715
Outline
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Micro-cubes of hardened cement paste with the lengths of 100 μm and 200 μm were prepared by micro-dicing and thin-sectioning techniques. The compressive strength and splitting strength of these specimens were measured by a nanoindenter equipped with different types of tips. Considering the heterogeneity nature of the material in a micro-scale, we examined 100 specimens via a statistic analysis. The results show that the two-parameter Weibull distribution can be used to represent the probability distribution of both compressive strength and splitting strength in a micro-scale. The specimens with a higher water-to-binder ratio have a higher strength and a lower variability. Furthermore, the specimen size has an influence on the measured strength. The bigger specimens have lower strength and variability. The reported average value and variability of strengths obtained in this work are greater than those of the concrete in a meso-scale, but lower than those of the hydration product in a nano-scale.

hydrated cement paste  /  one-sided splitting strength  /  uniaxial compressive strength  /  Weibull distribution  /  micro-scale
葛智, 姜能栋, 张洪智, 侯东帅, Erik Schlangen, Branko Šavija. 硬化水泥净浆微观强度测试与表征. 硅酸盐学报, 2021 , 49 (5) : 887 -892 . DOI: 10.14062/j.issn.0454-5648.20200715
Zhi GE, Nengdong JIANG, Hongzhi ZHANG, Dongshuai HOU, Erik SCHLANGEN, Branko ŠAVIJA. Strength characterization of hydrated cement paste at micro-scale[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (5) : 887 -892 . DOI: 10.14062/j.issn.0454-5648.20200715
Appendix
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Year 2021 volume 49 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.20200715
  • Receive Date：2020-09-18
  • Online Date：2026-10-30
  • Published：2021-05-20
Article Data
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History
  • Received：2020-09-18
  • Revised：2020-11-05
Funding
Affiliations
    1.School of Qilu Transportation, Shandong University, Ji'nan 250100, China
    2.Suzhou Research Institute, Shandong University, Suzhou 215021, Jiangsu, China
    3.School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, Shandong, China
    4.Faculty of Civil Engineering and Geosciences, Delft University of Technology, 2628 CN, Delft, the Netherlands

Corresponding:

ZHANG Hongzhi (1990-), male, Ph.D., Researcher. 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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