Impact of drying on pore structures in ettringite-rich cements

Isabel Galan; H. Beltagui; M. García-Maté; F. P. Glasser; M. S. Imbabi

doi:10.1016/j.cemconres.2016.03.003

Impact of drying on pore structures in ettringite-rich cements

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

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	85-94
Number of pages	10
Journal	Cement and Concrete Research
Volume	84
DOIs	https://doi.org/10.1016/j.cemconres.2016.03.003
Publication status	Published - 1 Jun 2016
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Building and Construction
General Materials Science

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10.1016/j.cemconres.2016.03.003

Cite this

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title = "Impact of drying on pore structures in ettringite-rich cements",

abstract = "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.",

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T1 - Impact of drying on pore structures in ettringite-rich cements

AU - Galan, Isabel

AU - Beltagui, H.

AU - García-Maté, M.

AU - Glasser, F. P.

AU - Imbabi, M. S.

PY - 2016/6/1

Y1 - 2016/6/1

N2 - 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.

AB - 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.

KW - 3CaO·3AlO·CaSO (D)

KW - Drying (A)

KW - Ettringite (D)

KW - Mercury porosimetry (B)

KW - Pore size distribution (B)

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VL - 84

SP - 85

EP - 94

JO - Cement and Concrete Research

JF - Cement and Concrete Research

ER -

Impact of drying on pore structures in ettringite-rich cements

Abstract

Keywords

ASJC Scopus subject areas

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