Concrete Vs. Cement
Concrete is made up of cement, sand, rock, and water (and often additives). Cement is a powdery substance made with calcined lime and clay. It is mixed with water to form mortar or mixed with sand, gravel, and water to make concrete.
So, we see concrete trucks delivering concrete for concrete drives, sidewalks, etc.
Cement, being a powder, will blow away!!!
Here is a picture of an early concrete plant in Plainview.