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.
When you take the time to create a concrete countertop, you donât want to skimp on the time necessary to create a smooth finish. As you finish working the concrete in its form, you want to hand trowel the surface as smooth as possible to minimize any rough surfaces on the countertop.hen you take the time to create a concrete countertop, you donât want to skimp on the time necessary to create a smooth finish. As you finish working the concrete in its form, you want to hand trowel the surface as smooth as possible to minimize any rough surfaces on the countertop.