What question did this study set out to answer?

To systematically evaluate the early-age hydration behavior and heat release of portland cement blended with ten widely used supplementary cementitious materials.

February 16, 2026Next SustainabilityOpen Access

Hydration heat comparison of portland cement blends with commonly available supplementary cementitious materials (SCMs) by isothermal calorimetry

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To systematically evaluate the early-age hydration behavior and heat release of portland cement blended with ten widely used supplementary cementitious materials.
Substituted portland cement with ten supplementary cementitious materials (MK, CC, CFA, FFA, BFS, SF, SBA, NCZ, ESP, and LSP) at replacement levels of 0–20% by mass.
Tracked hydration heat using isothermal calorimetry over 60 hours at 25 °C with a constant water-to-cementitious materials ratio of 0.45.
Class F fly ash and blast furnace slag reduced cumulative hydration heat by 50–65%, whereas metakaolin and eggshell powder increased normalized cumulative heat by up to 10–15%.
Alite (C₃S) heat peaks decreased by 10–45% across blends, while aluminate (C₃A) peaks increased by 15–20% for metakaolin and eggshell powder but fell by up to 20% for natural clinoptilolite zeolite.
Dormancy periods remained mostly unaffected, displaying minor extensions of 1–6 hours for Class C fly ash, Class F fly ash, blast furnace slag, and silica fume.

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Implication

Experimental study reveals diverse hydration heat profiles across ten portland cement blends, suggesting pathways to tailor thermal behavior in low-carbon concrete.

Cite This Study

Islam et al. (2026) studied this question.

synapsesocial.com/papers/6a82f45e24ad758e22e8db40 https://doi.org/10.1016/j.nxsust.2026.100258

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Implication

Experimental study reveals diverse hydration heat profiles across ten portland cement blends, suggesting pathways to tailor thermal behavior in low-carbon concrete.

Hydration heat comparison of portland cement blends with commonly available supplementary cementitious materials (SCMs) by isothermal calorimetry

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Discussion

Implication

Cite This Study

Hydration heat comparison of portland cement blends with commonly available supplementary cementitious materials (SCMs) by isothermal calorimetry

Key Points

Discussion

Implication

Cite This Study

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