American Concrete Pavement Association
This evaporation rate calculator uses the evaporation rate equations in Paul Uno’s ACI Materials Journal (July/August 1998) article, Plastic Shrinkage Cracking and Evaporation Formulas, which are based on the popular evaporation rate nomograph from ACI 305R, Weather Concreting. Using this tool, you can quickly calculate the evaporation rate at hourly intervals based on the concrete temperature, the air temperature, the ambient relative humidity and the wind velocity. The calculated evaporation rate is provided for each time for which you provide data and also is presented on a plot alongside recommended caution and upper limits.
The user accepts ALL responsibility for decisions made as a result of the use of this design tool. American Concrete Pavement Association, its Officers, Board of Directors and Staff are absolved of any responsibility for any decisions made as a result of your use. Use of this design tool implies acceptance of the terms of use.