
It's finally here! The
official 1.0.0 version of the Life 365, service life prediction
model, is now available on the Cortec web site, www.CortecVCI.com.
Check the Cortec®
MCI®
section.
For those of you who
are unfamiliar with the software, the Life 365 model contains input
values for CNI (calcium nitrite), Rheocrete and epoxy coated rebar.
Just input the values for any particular project to calculate an
estimated service life of the structure with the various treatments.
So, once you have the
software, how do you use it to show the benefits of Cortec®
MCI®
products? The parameters that you need to change in the Life365
model are as follows:
 Run a "base case"
input all mix design parameters and any other needed information.
 Write down the D28
value for the base case, as well as the total cost.
 Go into "user defined"
 Type MCI2005 (or
MCI2006) and hit "add".
 Type in the total
costadd about $16 for the cost of the MCI to the total cost
for the base case and use this value for the total.
 Change the D28 to
match the base case value.
 Change the Ct to 0.18%.
 Change the propagation
period to 30 years. The model uses a default value of 6 years
for the propagation period. According to ASTM: G109 testing, MCI2005
decreases the corrosion rate about 5 times less than the control,
so it would take 5 times longer during the propagation period
to your first repair, thus the 30 year propagation period. MCI2006
decreases the corrosion rate 1215 times that of the control,
so you would want to use 7290 years for your propagation period.
 Click "okay" and save
the changes.
 Run the program the
same as you would otherwise from here.
