How does ambient temperature affect the magneto-rheological response of cementitious paste?

Dengwu Jiao; Shengming Hu; Geert De Schutter

doi:10.1016/j.conbuildmat.2025.142543

How does ambient temperature affect the magneto-rheological response of cementitious paste?

Dengwu Jiao^*
, Shengming Hu
, Geert De Schutter

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

Abstract

The pumping process and the application of an external electromagnetic field can alter the temperature of fresh concrete, potentially influencing the magneto-rheological (MR) response of cementitious materials. This study examines the impact of ambient temperature varying from 10℃ to 40℃ on the magneto-responsive structural evolution of cementitious paste with magnetic nano-Fe₃O₄ particles (MNPs). The experimental results reveal that in the absence of a magnetic field, the shear stress increases with rising temperature. The viscoelastic yield stress, measured from small amplitude oscillatory strain sweep test, remains unchanged up to 30℃ but increases significantly at temperatures above 30℃. Upon application of a 0.5 T magnetic field, the cement paste demonstrates enhanced fluid characteristics, whereas elevated temperature promotes faster evolution from viscous to elastic-dominated behavior. The MR response of the cementitious paste shows less change at ambient temperatures between 20℃ and 25℃, with variations within 1.5 %, but drops significantly when the temperature falls below 20℃ (by 4 %-8 %) or exceeds 30℃ (by 25 %-47 %). By analyzing the effect of temperature on cement hydration kinetics, thermodynamic forces, and magnetic properties of Fe₃O₄ particles, it is suggested that temperature primarily influences the MR response by affecting the hydration rate of the cement paste.
© 2025 Elsevier Ltd.

Original language	English
Article number	142543
Journal	Construction and Building Materials
Volume	490
Online published	4 Jul 2025
DOIs	https://doi.org/10.1016/j.conbuildmat.2025.142543
Publication status	Published - 5 Sept 2025

Funding

This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 program (693755), and the authors also acknowledge the financial support from the National Natural Science Foundation of China (52408295), the Guangdong Basic and Applied Basic Research Foundation (2025A1515012809), the Shenzhen Science and Technology Program (No. JCYJ20230807115000001), and Early Career Scheme (ECS) from Research Grants Council of Hong Kong SAR (CityU 21211024).

Research Keywords

Temperature
Active rheology control
Magnetic field
Cement paste
Hydration kinetics

RGC Funding Information

RGC-funded

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Cite this

@article{da035163104143368f6be659458ce93b,

title = "How does ambient temperature affect the magneto-rheological response of cementitious paste?",

abstract = "The pumping process and the application of an external electromagnetic field can alter the temperature of fresh concrete, potentially influencing the magneto-rheological (MR) response of cementitious materials. This study examines the impact of ambient temperature varying from 10℃ to 40℃ on the magneto-responsive structural evolution of cementitious paste with magnetic nano-Fe3O4 particles (MNPs). The experimental results reveal that in the absence of a magnetic field, the shear stress increases with rising temperature. The viscoelastic yield stress, measured from small amplitude oscillatory strain sweep test, remains unchanged up to 30℃ but increases significantly at temperatures above 30℃. Upon application of a 0.5 T magnetic field, the cement paste demonstrates enhanced fluid characteristics, whereas elevated temperature promotes faster evolution from viscous to elastic-dominated behavior. The MR response of the cementitious paste shows less change at ambient temperatures between 20℃ and 25℃, with variations within 1.5 \%, but drops significantly when the temperature falls below 20℃ (by 4 \%-8 \%) or exceeds 30℃ (by 25 \%-47 \%). By analyzing the effect of temperature on cement hydration kinetics, thermodynamic forces, and magnetic properties of Fe3O4 particles, it is suggested that temperature primarily influences the MR response by affecting the hydration rate of the cement paste. {\textcopyright} 2025 Elsevier Ltd.",

keywords = "Temperature, Active rheology control, Magnetic field, Cement paste, Hydration kinetics",

author = "Dengwu Jiao and Shengming Hu and \{De Schutter\}, Geert",

year = "2025",

month = sep,

day = "5",

doi = "10.1016/j.conbuildmat.2025.142543",

language = "English",

volume = "490",

journal = "Construction and Building Materials",