ASTM C1556 parameters using formation factor and Langmuir isotherm parameters

Under development !

Self diffusion coefficient of Cl in water at 25oC (m/s2):


Porosity of concrete:


Langmuir binding isotherm parameter, alpha:


Langmuir binding isotherm parameter, beta:


Chloride concentration of the exposure solution (kg/m3 of solution):


Formation factor of concrete:


Density of concrete (kg/m3):
(If known)



Bound chloride concentration (kg/m3 of concrete):


Apparent chloride diffusion coefficient (m/s2):


Surface chloride concentration (kg/m3 of concrete):


Surface chloride concentration (% mass of concrete):
(Based on the provided concrete density)

Other calculators

These calculators are provided for educational purposes and without any guarantees.