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Experimental study of flexural fatigue behaviour of cement paste at the microscale

Journal Article (2021)
Author(s)

Y. Gan (TU Delft - Materials and Environment)

Hongzhi Zhang (Shandong University)

Yu Zhang (TU Delft - Transport and Planning)

Y. Xu (TU Delft - Materials and Environment)

H.E.J.G. Schlangen (TU Delft - Materials and Environment)

K van Breugel (TU Delft - Materials and Environment)

B Savija (TU Delft - Materials and Environment)

Research Group
Materials and Environment
Copyright
© 2021 Y. Gan, Hongzhi Zhang, Y. Zhang, Y. Xu, E. Schlangen, K. van Breugel, B. Šavija
DOI related publication
https://doi.org/10.1016/j.ijfatigue.2021.106378
More Info
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Publication Year
2021
Language
English
Copyright
© 2021 Y. Gan, Hongzhi Zhang, Y. Zhang, Y. Xu, E. Schlangen, K. van Breugel, B. Šavija
Research Group
Materials and Environment
Volume number
151
Pages (from-to)
1-13
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Abstract

This study presents an experimental investigation of fatigue properties of cement paste at the microscale. A strong size dependence is found for the flexural fatigue life of the cement paste specimen. Microscopic observations on the fractured surfaces suggest that there is a higher density of nano-scale cracks generated during the fatigue loading compared to the static fracture. However, the fatigue damage evolution is found to be very slow and small even under high stress levels. The development of residual deformation for cement paste can be explained by the combined effects of viscoelastic deformation and fatigue cracking growth.