are for sodium chloride, NaCl, calcium hydroxide, Ca(OH)2, and sodium sulfate, Na2SO4, respectively.
Below is a list of all possible input parameters. At the end of each description is an example of usage. In cases where a default value exists, the default value is used as the example value. Whether or not the value is a default value is noted next to the example.
4.1Material Properties
DIFF = expr
m2/sec
expr: The ultimate Cl – diffusivity of the concrete. This value represents the diffusivity of the undamaged concrete. The default value given below is suitable for a w/c=0.45 ordinary portland concrete.
default: DIFF = 5.7E-12
PERM = expr
m2
expr: The ultimate permeability of the concrete. This value represents the permeability of the undamaged concrete.
default: PERM = 2.5E-18
WC = expr
expr: Concrete water:cement weight ratio during mixing.
default: WC = 0.45
4.2Ion/Fluid Initial Conditions
EXTERNAL ion = expr
mol/L
ion: The ion of interest.
expr: The external concentration of ion above the roof. This command can be repeated for each ion external to the roof slab.
example: EXTERNAL Cl = 0.15
INTERNAL ion = expr
mol/L
5
