Acta Mechanica Solida Sinica

, Volume 22, Issue 4, pp 320–327 | Cite as

Experimental Evaluation on Modulus of Equivalent Homogeneous Ettringite

  • Minghua Zhang
  • Jiankang Chen
  • Jue Zhu
  • Jiangying Chen


In the present study, the average modulus of delayed ettringite is evaluated by an experimental method combined with theoretical analysis. Firstly, the delayed ettringite crystal is synthesized by chemical reaction of Aluminum sulfate and calcium hydroxide. Secondly, specimens are obtained by compressing the delayed ettringite crystal under different pre-loads. Thirdly, the variation of the modulus of the specimen with different pre-loads is tested using Instron material test machine and the SHPB technique, respectively. It is found that the experimental data may be suitably fitted by Boltzmann Function. Finally, the porosity of the specimen is detected using the saturation method, and the effect of the porosity on the modulus is analyzed by the Eshelby’s equivalent inclusion method and the Mori-Tanaka’s scheme. The static and dynamic modulli of the equivalent homogeneous ettringite obtained in present study are approximately 10.64 GPa and 24.61 GPa, respectively.

Key Words

ettringite equivalent homogeneous materials Boltzmann Function modulus 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2009

Authors and Affiliations

  • Minghua Zhang
    • 1
  • Jiankang Chen
    • 1
  • Jue Zhu
    • 1
  • Jiangying Chen
    • 1
  1. 1.Department of Mechanics and Engineering ScienceNingbo UniversityNingboChina

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