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3 cards from this section. Quick, good the night before a test.
What does OPI stand for?
It's related to how oxygen moves through materials.
Name one factor that influences OPI.
Think about how mixing water affects concrete.
What does a high Oxygen Permeability Index (OPI) indicate?
Think about how oxygen affects metal in concrete.
True or False: A low water-cement ratio increases the permeability of concrete.
Remember the relationship between water and pore size.
Consider a concrete mix designed for a coastal environment. If the OPI measured is excessively high, how would you redesign the mix to reduce permeability and increase durability?
Think about all variables that influence concrete's internal structure.
After assessing a university building, the OPI value indicates risk of corrosion. What steps would you recommend to mitigate these risks in future designs?
Look at every aspect from material selection to design practices.
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