Micro-cantilever testing on the short-term creep behaviour of cement paste at micro-scale

Yidong Gan, Matthieu Vandamme, Hongzhi Zhang*, Yu Chen, Erik Schlangen, Klaas van Breugel, Branko Šavija

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
16 Downloads (Pure)

Abstract

This study proposes an experimental method for studying the short-term creep behaviour of cement paste at micro-scale. The micro-bending tests on miniaturized cantilever beams were used to characterize the viscoelastic properties of cement paste. The effects of w/b ratio, the type of binder and the stress level on the microscopic creep behaviour were investigated. It is found that the short-term creep of cement paste at microscale can be satisfactorily described by a power-law function. A linear viscoelastic behaviour has been observed in different cementitious systems at the microscale with the stress level up to 67.9%. When compared with the creep results in microindentation tests and conventional macroscopic tests, the obtained creep compliance function in this study is found to be both qualitatively and quantitatively representative of the macroscopic results. This experimental study underlines the importance of microstructural effect on the creep behaviours of cementitious materials at microscale.

Original languageEnglish
Article number106105
Number of pages11
JournalCement and Concrete Research
Volume134
DOIs
Publication statusPublished - 2020

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Cement paste
  • Creep
  • Miniaturized cantilever beam
  • Nanoindenter

Fingerprint

Dive into the research topics of 'Micro-cantilever testing on the short-term creep behaviour of cement paste at micro-scale'. Together they form a unique fingerprint.

Cite this