Production of alinite-chlormayenite clinker and its hydration behavior with increasing gypsum content

Marco Simoni; Aniruddha Baral; Zhili Ren; Tristana Y. Duvallet; Robert B. Jewell; Christiane Rößler; Theodore Hanein

doi:10.1016/j.cemconres.2024.107774

Production of alinite-chlormayenite clinker and its hydration behavior with increasing gypsum content

Marco Simoni, Aniruddha Baral, Zhili Ren, Tristana Y. Duvallet, Robert B. Jewell, Christiane Rößler, Theodore Hanein

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

2 Scopus citations

Abstract

An alternative low-energy alinite-chlormayenite clinker was produced and its hydration with different gypsum content was studied. The clinker was produced at 1225 °C using reagent-grade materials in an electric kiln with alinite, larnite, and chlormayenite content of 48, 24, and 16 wt%, respectively. The hydration kinetics of the clinker with different gypsum additions (0,10, 20, and 40 wt%) did not have a distinct induction period, and the hydration was faster than Portland cement. Alinite was in general more reactive than chlormayenite. In the presence of a limited amount of gypsum (10 and 20 wt%), alinite consumed gypsum to form ettringite within the first hour of hydration, and both alinite and chlormayenite formed Friedel's salt after gypsum was exhausted. Sufficient gypsum availability (40 wt%) slowed down the dissolution of alinite and chlormayenite for the first hour of hydration but enabled both chlormayenite and alinite to form ettringite.

Original language	English
Article number	107774
Journal	Cement and Concrete Research
Volume	189
DOIs	https://doi.org/10.1016/j.cemconres.2024.107774
State	Published - Mar 2025

Bibliographical note

Publisher Copyright:
© 2024 The Authors

Funding

T. Hanein and M. Simoni were funded by UKRI through a Future Leaders Fellowship ( MR/V023829/1 ). A. Baral and T. Hanein were also funded by UKRI EPSRC project EP/W018810/1 . We would like to acknowledge that this work was also supported by the UKRI ISCF Industrial Decarbonization Challenge through the UK Industrial Decarbonization Research and Innovation Centre (IDRIC) award number EP/ V027050 /1 under the Industrial Decarbonization Challenge (IDC). This work was also funded by the Dr Jeff Wadsworth\u2013Battelle Visiting Research Fellowship ( 2019 ). The XRF analysis was performed by AMG Analytical Services, Rotherham, South Yorkshire S60 1DL, England. Discussions with Dr. Vaishnav Kumar Shenbagam regarding the stability of hydrated phases are also acknowledged.

Funders	Funder number
IDRIC
UK Industrial Decarbonization Research and Innovation Centre
UK Research and Innovation Science and Technology Facilities Council	MR/V023829/1
UK Research and Innovation Science and Technology Facilities Council
Economic and Social Research Council	EP/W018810/1
Economic and Social Research Council
UKRI ISCF	EP/ V027050 /1

Keywords

Alinite
Chlorine
Chlormayenite
Ettringite
Friedel's salt
Gypsum

ASJC Scopus subject areas

Building and Construction
General Materials Science

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10.1016/j.cemconres.2024.107774

Cite this

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title = "Production of alinite-chlormayenite clinker and its hydration behavior with increasing gypsum content",

abstract = "An alternative low-energy alinite-chlormayenite clinker was produced and its hydration with different gypsum content was studied. The clinker was produced at 1225 °C using reagent-grade materials in an electric kiln with alinite, larnite, and chlormayenite content of 48, 24, and 16 wt\%, respectively. The hydration kinetics of the clinker with different gypsum additions (0,10, 20, and 40 wt\%) did not have a distinct induction period, and the hydration was faster than Portland cement. Alinite was in general more reactive than chlormayenite. In the presence of a limited amount of gypsum (10 and 20 wt\%), alinite consumed gypsum to form ettringite within the first hour of hydration, and both alinite and chlormayenite formed Friedel's salt after gypsum was exhausted. Sufficient gypsum availability (40 wt\%) slowed down the dissolution of alinite and chlormayenite for the first hour of hydration but enabled both chlormayenite and alinite to form ettringite.",

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AU - Jewell, Robert B.

AU - Rößler, Christiane

AU - Hanein, Theodore

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N2 - An alternative low-energy alinite-chlormayenite clinker was produced and its hydration with different gypsum content was studied. The clinker was produced at 1225 °C using reagent-grade materials in an electric kiln with alinite, larnite, and chlormayenite content of 48, 24, and 16 wt%, respectively. The hydration kinetics of the clinker with different gypsum additions (0,10, 20, and 40 wt%) did not have a distinct induction period, and the hydration was faster than Portland cement. Alinite was in general more reactive than chlormayenite. In the presence of a limited amount of gypsum (10 and 20 wt%), alinite consumed gypsum to form ettringite within the first hour of hydration, and both alinite and chlormayenite formed Friedel's salt after gypsum was exhausted. Sufficient gypsum availability (40 wt%) slowed down the dissolution of alinite and chlormayenite for the first hour of hydration but enabled both chlormayenite and alinite to form ettringite.

AB - An alternative low-energy alinite-chlormayenite clinker was produced and its hydration with different gypsum content was studied. The clinker was produced at 1225 °C using reagent-grade materials in an electric kiln with alinite, larnite, and chlormayenite content of 48, 24, and 16 wt%, respectively. The hydration kinetics of the clinker with different gypsum additions (0,10, 20, and 40 wt%) did not have a distinct induction period, and the hydration was faster than Portland cement. Alinite was in general more reactive than chlormayenite. In the presence of a limited amount of gypsum (10 and 20 wt%), alinite consumed gypsum to form ettringite within the first hour of hydration, and both alinite and chlormayenite formed Friedel's salt after gypsum was exhausted. Sufficient gypsum availability (40 wt%) slowed down the dissolution of alinite and chlormayenite for the first hour of hydration but enabled both chlormayenite and alinite to form ettringite.

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Production of alinite-chlormayenite clinker and its hydration behavior with increasing gypsum content

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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