ASK THE BUILDER | The more cement you add to your mix, the stronger the concrete is going to be. The minimum strength for exterior concrete that most experts recommend is a 4,000 pounds-per-square-inch compressive-strength blend.
ASK THE BUILDER | The more cement you add to your mix, the stronger the concrete is going to be. The minimum strength for exterior concrete that most experts recommend is a 4,000 pounds-per-square-inch compressive-strength blend.