Acta Mechanica Solida Sinica

, Volume 29, Issue 6, pp 610–619 | Cite as

An Internal Expansive Stress Model of Concrete under Sulfate Attack

Article

Abstract

Concrete experiences expansive deformation during sulfate attack due to internal expansive stress. Sulfate ions enter concrete pores, react with the pore solution, and produce ettringite. The production of ettringite explains the internal expansive stress that reduces the durability of concrete. In this study, the model of internal expansive stress was achieved through the Eshelby’s theory, as well as the experimental results for concrete erosion. Numerical simulation indicated that internal expansive stress is not only determined by the water-to-cement ratio of concrete and the concentration of sulfate solution, but also affected by the relaxation time of concrete.

Key Words

concrete viscous internal stress model erosion micromechanics 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2016

Authors and Affiliations

  1. 1.The Faculty of Mechanical Engineering and MechanicsNingbo UniversityNingboChina
  2. 2.State Key Laboratory of Turbulence and Complex SystemsPeking UniversityBeijingChina
  3. 3.The Faculty of Civil Engineering and ArchitectureNanchang Institute of TechnologyNanchangChina
  4. 4.School of Materials Science and EngineeringSoutheast UniversityNanjingChina

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