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.
For our 12-square-foot countertop, we needed three 60-pound bags of ready-mix concrete. Add water to the concrete and mix with a shovel per the manufacturer's instructions. If you want to add color to the countertop, nowâs the time to add pigment to the mix. Pigment additives come in powder or liquid.