Concrete Durability Calculator

Enter parameters to predict the design life of a concrete structure based on carbonation only. Use climate data from the BOM website.

Exposure Classification (AS 3600): A1 (Inland, low risk) B1 (Near-coastal, moderate) B2 (Coastal, high) C1 (Marine, spray zone) C2 (Marine, tidal/splash zone) Concrete Strength Grade (MPa): 25 32 40 50 Binder Type: OPC (Ordinary Portland Cement) 25% Fly Ash 50% Ground Granulated Blast-furnace Slag Cover Depth (mm): Curing Time (days): Relative Humidity (%, BOM data): Probability of Driving Rain (0–1): Time of Wetness (fraction, 0–1):