Rheology and Mechanical Properties of Different Geopolymer Composites

  • J. Archez
  • , N. Texier-Mandoki
  • , X. Bourbon
  • , J. F. Caron
  • , S. Rossignol

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work aims to study the influence of the shaping process on the mechanical properties of geopolymer composites reinforced with glass fibers and wollastonite. To this end, the synthesis feasibility of two geopolymer composite formulations was first determined. The influence of casting, extrusion and robocasting on mechanical properties was then studied with compressive and three-points bending tests and microstructural analysis. The results showed that the casting process is preferable to be used for low viscosity geopolymer composite while robocasting is more appropriate for geopolymer composite with high viscosity. The extruded and cast samples exhibit similar compressive data's. The microstructural analysis showed that the robocasting process orients the fibers in the printing direction with an undefined interlayer. The casting process leads to a homogeneous material while the robocasting process conducts to an anisotropic material.

Original languageEnglish
Title of host publication11th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete, ICCM 2021
EditorsArezki Tagnit-Hamou
PublisherAmerican Concrete Institute
Pages274-279
Number of pages6
ISBN (Electronic)9781641951395
Publication statusPublished - 28 Apr 2021
Event11th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete, ICCM 2021 - Virtual, Online
Duration: 7 Jun 202110 Jun 2021

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-349
ISSN (Print)0193-2527

Conference

Conference11th ACI/RILEM International Conference on Cementitious Materials and Alternative Binders for Sustainable Concrete, ICCM 2021
CityVirtual, Online
Period7/06/2110/06/21

Keywords

  • casting
  • composite
  • geopolymer
  • mechanical
  • process
  • robocasting
  • shaping

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