Seven alumni from the University of Arizona's mining and geological engineering program competed in the alumni division, coming in second place. The competition commemorates the 91 miners who died in the 1972 Sunshine mine disaster and continues to honor all miners who have lost their lives while on the job.
Place concrete at a minimum thickness of 4 inches. Increasing the thickness from 4 inches to 5 inches will add approximately 20% to your concrete cost, but will also boost your driveway's load-carrying capacity nearly 50% , according to the Tennessee Concrete Association.lace concrete at a minimum thickness of 4 inches. Increasing the thickness from 4 inches to 5 inches will add approximately 20% to your concrete cost, but will also boost your driveway's load-carrying capacity nearly 50% , according to the Tennessee Concrete Association.
The main priority in having a properly built driveway is the concrete thickness. You will want to consider the type of vehicles you will be parking upon that drive before you decide the thickness.If you will be parking normal cars, you can go with a four inch concrete thickness.If you have plans to park a heavy truck, camper, or a boat on your driveway, it is recommended to pour a five inch thick driveway.f you will be parking normal cars, you can go with a four inch concrete thickness. If you have plans to park a heavy truck, camper, or a boat on your driveway, it is recommended to pour a five inch thick driveway.