A new book coming this spring from the U.S. Green Concrete Council, a for-profit unit of American Concrete Institute, calculates the "green-ness" of the world's most consumed building material. Photo: American Concrete Institute Produced at a rate of about 25 billion tons per year and growing, concrete requires a tremendous amount of energy to produce, transport, build and maintain, and it contributes to the world's carbon-dioxide emissions. But it also provides benefits. The book weighs and balances the issues to help designers make more efficient use of the material. "Wise use of this material can make a significant contribution to
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.