Enter compressive and tensile strength measured at several ages, each with the temperature the specimens were cured at. Every point is converted to equivalent age at the reference temperature, compressive strength is fitted as f_c = f_cu·exp[−(τ/t_e)^β], and tensile strength is correlated to it as f_t = a·f_c^0.5 — or with the exponent fitted too.

Columns: time (hours)   curing temperature (°C)   compressive strength (MPa)   tensile strength (MPa) 24 20 12.1 1.62 72 20 24.9 2.45 168 20 31.8 2.88 168 10 26.0 2.61 336 20 37.2 3.30 672 20 41.5 3.52

Manually input known parameters, or paste limewater test data and use the auto-fitter.

Compressive strength development comes from the cement chemistry and mix above; tensile strength follows it by the relation chosen here.

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