The mining industry spans the globe, as do alumni of the University of Arizona mining and geological engineering program. Many got their feet wet working as interns for Arizona-based mining companies like Freeport-McMoRan.
Weight A 1 Â½ inch thick countertop made of standard concrete has an approximate weight of 18.75 pounds per square foot. (Granite is approximately 18 pounds per square foot.) Standard cabinetry will typically support this weight because itâs distributed over a large area.
Many concrete countertop makers do not understand reinforcing, and they make their slabs too thick, 2 inches or more, to compensate for their lack of confidence in their concrete. There is no need to make precast concrete more than 1.5â³ thick, if you understand how to reinforce it properly.