A review of the effect of nanoclays on the fresh and hardened properties of cement-based materials

Shiho Kawashima*, Kejin Wang, Raissa Douglas Ferron, Jae Hong Kim, Nathan Tregger, Surendra Shah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

This paper provides an overview of the use of nanoclays in cement-based materials. The effect of nanoclays on shear rheological properties will be discussed, with a focus on structural build-up behavior. This macroscale flow behavior will then be tied to the effect of nanoclays on the fresh microstructure as characterized via in-situ particle size measurements and rheological techniques. This will provide insight on the mechanisms underlying the effect of nanoclays on fresh state properties through an improved understanding of their effect on flocculation and coagulation behavior. In addition, secondary effects nanoclays have on the hardening and hardened properties will also be discussed. Examples of casting applications in which nanoclays have been effectively utilized as rheological modifiers, i.e. reducing self-consolidating concrete formwork pressure, extrusion, semi-flowable concrete for slipform paving, and 3D concrete printing, will be presented. Finally, some thoughts on potential directions for future work will be shared.

Original languageEnglish (US)
Article number106502
JournalCement and Concrete Research
Volume147
DOIs
StatePublished - Sep 2021

Keywords

  • Hydration
  • Nanoclay
  • Rheology
  • Shrinkage
  • Strength

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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