Architect’s Perspective: Concrete Innovations in Arizona
Doug Sydnor, FAIA Concrete is not only a long-lasting material; humans have also used it for a long time. Its origins are a concrete-like material used in the 4th century B.C. in southern Syria and northern Jordan. The Roman Empire improved concrete and used it to build revolutionary designs of structural complexity and dimension, such as the Colosseum in Rome and the Pantheon, the world’s largest unreinforced concrete dome. After the Roman Empire collapsed during the 4th cen