Maturity, strength gain and striking time — the curing math behind safe formwork removal, free.
Nurse-Saul maturity index (°C·h) for a slab on grade against a required threshold.
Days to reach the striking strength for slab soffit (props remain) from the strength-gain curve at your site temperature.
Strength at any age for Type I (OPC), Moist-Cured via the ACI 209 hyperbolic curve f(t) = f₂₈·t/(a+b·t).
ACI 305 evaporation rate for a warehouse floor slab with the standard cracking-risk thresholds.
Concrete temperature vs time for a slab under insulating blankets (Newton cooling with hydration offset) against the 5 °C danger line.
Peak core temperature and core-surface differential for a raft foundation (1.5 m) from binder content.
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