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Thermodynamics-based simulations of the hydration of low-heat Portland cement and the compensatory effect of magnesium oxide admixtures
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Wenwei LI1,2, Yifan ZHOU3, Jiajie YIN3, Yuxiang PENG3, Yushan WANG4, Shengwen TANG3,5, Yan SHI2, Wang YANG3, Lei WANG6. Thermodynamics-based simulations of the hydration of low-heat Portland cement and the compensatory effect of magnesium oxide admixtures[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .
@article{title="Thermodynamics-based simulations of the hydration of low-heat Portland cement and the compensatory effect of magnesium oxide admixtures",
author="Wenwei LI1,2, Yifan ZHOU3, Jiajie YIN3, Yuxiang PENG3, Yushan WANG4, Shengwen TANG3,5, Yan SHI2, Wang YANG3, Lei WANG6",
journal="Journal of Zhejiang University Science A",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2400521"
}
%0 Journal Article
%T Thermodynamics-based simulations of the hydration of low-heat Portland cement and the compensatory effect of magnesium oxide admixtures
%A Wenwei LI1
%A 2
%A Yifan ZHOU3
%A Jiajie YIN3
%A Yuxiang PENG3
%A Yushan WANG4
%A Shengwen TANG3
%A 5
%A Yan SHI2
%A Wang YANG3
%A Lei WANG6
%J Journal of Zhejiang University SCIENCE A
%V -1
%N -1
%P
%@ 1673-565X
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2400521
TY - JOUR
T1 - Thermodynamics-based simulations of the hydration of low-heat Portland cement and the compensatory effect of magnesium oxide admixtures
A1 - Wenwei LI1
A1 - 2
A1 - Yifan ZHOU3
A1 - Jiajie YIN3
A1 - Yuxiang PENG3
A1 - Yushan WANG4
A1 - Shengwen TANG3
A1 - 5
A1 - Yan SHI2
A1 - Wang YANG3
A1 - Lei WANG6
J0 - Journal of Zhejiang University Science A
VL - -1
IS - -1
SP -
EP -
%@ 1673-565X
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2400521
Abstract: Low-heat Portland (LHP) cement is a new type of Portland cement that has been widely used in recent years due to its low heat of hydration, which makes it exceptional in temperature control for mass concrete construction. However, limited studies have investigated the impact of temperature and magnesium oxide (MgO) content on LHP cement-based materials. This study utilizes thermodynamic simulations to study the hydration process, pore structure, and autogenous shrinkage of LHP cement pastes with different water-to-cement ratios (0.3, 0.4, and 0.5), curing temperatures (5C, 15C, 20C, and 30C) and MgO contents (2%, 4%, and 5%). Higher curing temperature is found to promote the hydration reactions in cement paste. Moreover, the addition of 4wt% MgO reduces the porosity and shrinkage of the paste to a certain extent. The microstructural evolution of different LHP pastes is examined through a comparative analysis, lending insights into LHP cement-based material applica-tions.
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