Hydration
Kinetics Engine

From Short North concrete pours to Martian regolith sinters: compute the exothermic profile that turns slurry into stone.

Arrhenius-Gualtieri Model

α(t,T) = 1 − exp[−k₀·exp(−Eₐ/RT)·tⁿ]

degree of hydration

Fraction of cement reacted (0–1)

k₀

pre-exponential factor

1.2×10¹³ s⁻¹ (Type I Portland)

Eₐ

activation energy

41.8 kJ/mol (C₃S dominant phase)

Avrami exponent

0.65 (diffusion-controlled regime)

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Exothermic Profile Calculator

Ambient Temperature (°C)

Cement Mass (kg)

Target Hydration Time (hours)

Peak Degree:

Heat Released:

Max Temp Rise:

Adiabatic Limit:

HydrationKinetics Engine