For thousands of years, people have built civilizations with concrete made from readily available local materials. Just mix and heat, add some sand, stone and water and put it where you want it. Of course, give it time to harden — that is, after you have
left your hand print or initials.
So it’s no surprise that concrete is the world’s most widely used building material. Twice as much concrete has been used to build Pittsburgh — and everything else in the world — than wood and steel combined. So says concrete expert Julie Marie
Vandenbossche, a University of Pittsburgh civil engineer.
David Templeton, Pittsburgh Post-Gazette, 10/24/2017
Contact: Paul Kovach