Based on the lecture notes, comment on the cement ingredients of the special concrete applications needed for the below mentioned construction cases. Explain your reasons in terms of required properties and cement ingredients.

Case $1$:

After a major storm damages a critical highway section, which type of Cement would be most effective for swiftly restoring the roadway and minimizing traffic disruption?

Case $2$:

When constructing a seawall in a coastal area prone to saltwater exposure, what type of concrete should be used to ensure long$-$term durability?