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.
You should note that a concrete benchtop has to be thick-about 60mm. We bought a book Concrete Countertops by Fu-Tung Cheng (check his website) and used it as the reference for our kitchen benchtops. Our kitchen cupboards were built with the knowledge that a heavy benchtop was going ontop.o how did we go with our benchtop construction costs? That is over $1000 to set ourselves up (ready to make lots of benchtops). And that is less than $600 for the materials consumed to make one cooktop benchtop (1550*750mm) and a two-piece island benchtop (4000*700mm).