Impact of drying on pore structures in ettringite-rich cements

I. Galan*, H. Beltagui, M. García-Maté, F. P. Glasser, M. S. Imbabi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)


Drying techniques affect the properties of cement pastes to varying extents. The effect of different drying techniques on calcium sulfoaluminate-based (C$A) cements and their constituent phases is reported for a range of simulated and commercial C$A pastes which are benchmarked against an OPC paste. The recommended methodologies used to dry samples were identified from the literature and include D-drying and solvent exchange. These methods were used in conjunction with mercury intrusion porosimetry (MIP) and X-ray powder diffraction (XRPD) measurements to assess the changes in pore structure and the damage to crystalline phases, respectively. D-drying and isopropanol exchange are the most satisfactory and least damaging methods for drying C$A based pastes.

Original languageEnglish
Pages (from-to)85-94
Number of pages10
JournalCement and Concrete Research
Early online date2 Apr 2016
Publication statusPublished - 1 Jun 2016

Bibliographical note

IG, HB, FPG and MSI gratefully acknowledge the financial support provided by the Gulf Organization for Research and Development (GORD), Qatar, through research grant number ENG016RGG0593.

MGM acknowledges the financial support provided by the Junta de Andalucía through research grant number P11-FQM-07517.


  • 3CaO·3AlO·CaSO (D)
  • Drying (A)
  • Ettringite (D)
  • Mercury porosimetry (B)
  • Pore size distribution (B)


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