Concrete Nation | Bright future for ancient material

Science News Online
Alexandra Goho

Each year, billions of tons of concrete become the stuff of buildings, highways, dams, sidewalks, and even artworks. The list goes on. Not only is the material ubiquitous, it has a long history. The Romans invented cement-based concrete more than 2,000 years ago and used the material to build architectural masterpieces such as the Pantheon. To Christian Meyer, a structural engineer at Columbia University, there’s just no question about it: “Concrete is the world’s most important material.” ....Read More