July 2004 Table of Contents

Features Water Travel -The Baltimore Aquarium

The 65,000-square-foot addition to the National Aquarium in Baltimore is a 10-story structural concrete and glass building that began in September 2002. The specification called for the concrete to be placed in one monolithic pour to ensure a perfect finish. The solution was to use self-consolidating concrete (SCC) and pour the entire height of the columns in a single pour without vibration. Read more

Features Building Bridges Fast Track

Changes in how bridges are constructed are reducing delays. Today the Federal Highway Administration’s Bridge Division is focused on “Fast Track.” Its motto is, “Get in, get out, and stay out.” There is a new emphasis for accelerating construction and repair of bridges: Read more

Features Alteration of Samples

Samples extracted from a concrete structure for laboratory study are typically being examined to determine what occurred while the concrete was in service. But sample removal can upset the “equilibrium” of the concrete before it arrives at the laboratory. Read more

Features Growing Smart

A common buzzword in today’s business world is culture. At management conferences and executive seminars, we are all told that we need to establish a corporate culture that governs our business and philosophy. However, as many have found, such a task is neither easy nor complete without an ongoing commitment. This is because a culture goes beyond ideals, to how you make choices. Read more

Features No Men at Work

At first it doesn’t look like much. Just a concrete wall, 3 feet high and 5 feet long, sitting on the floor of a laboratory in Los Angeles. But this wall wasn’t poured. It was “printed” by the machine next to it, a robot armed with a concrete pump and a pair of trowels. Although the wall is nicely crafted, with a uniform surface and smoothly rounded ends, it’s just a trifle when compared with the robot’s next job: building a 2000-square-foot house. Read more

Features The 2004 CC100: Signs of a Steady Rebound

Overall the CC100 contractors had a pretty good year in 2003, and most are having an even better start to 2004. This article includes the top 100 contractors for 2003 by revenue. Also shown are the top 20 “pure” commercial concrete contractors, the 20 fastest growning companies, and the top decorative, residential, and tilt-up contractors. Read more

Decorative Concrete Placing Photos and Graphics on Concrete Floors

A couple of years ago, Gordon Julius, an architect in Grand Rapids, Mich., wanted a decorative floor finish for a clothing store to show images of clothing. He contacted Agio Imaging, Kalamazoo, Mich., for suggestions. Agio Imaging was using a process called “grand format graphics” to create images on paper, cloth, canvas, or other materials up to 150 feet long and 16 feet wide. Bill Rousos, vice president of marketing, recalled being skeptical about the compatibility of concrete’s alkalinity and his ink. He also wondered what type of material to print on that would adhere to concrete. After much research and testing, they solved the problems and produced the effect that Julius was after. That success led Agio Imaging and Julius to form a company and start the patenting process for a product they are calling Floor Pix—moving decorative concrete in a new direction. Read more

Close X