Concrete Construction articles from July 2002

Concrete Construction archives from July 2002

A heaping helping of common sense. (Editorial Comment).(concrete industry will recover)(Brief Article)(Editorial)
July 1, 2002... What we euphemistically call "the concrete industry" is actually an incredibly diverse collection of large and small companies that are involved with concrete as builders, inspectors, designers, researchers, material producers, equipment...

Vibrating screeds and air. (Reader Response).
July 1, 2002... I am very interested in finding out if vibrating affects air entrainment ("Do Hand-Held Vibrating Screeds Affect Surface Air Entrainment?" December 2001, p. 51). All state and federal highway jobs require vibrating the concrete. If I understand...

Minimum temperatures for placing concrete. (Reader Response).
July 1, 2002... The Troubleshooting article on cold weather (January 2002, p. 100), makes an erroneous interpretation of Table 3.1 in ACI 306R-88, "Cold Weather Concreting." The table gives minimum recommended concrete temperatures (italics mine), but the...

Walker Parking Consultants loses one of its best. (News & Events).(Anthony P. Chrest passes away)(Brief Article)
July 1, 2002... Anthony P. (Tony) Chrest, Senior Vice President and Corporate Chief Engineer of Walker Parking Consultants, died at his home in Raleigh, N.C., on April 23, 2002. Among the nation's leaders in concrete design and construction, Chrest was a...

ACI releases new building code. (News & Events).(American Concrete Institute)(Brief Article)
July 1, 2002... The American Concrete Institute (ACI International) has released the 2002 edition of Building Code Requirements for Structural Concrete, the most comprehensive revision of ACI 318 in 40 years. "The revisions in ACI 318-02 will cause some fairly...

Bob the Builder. (News & Events).(new computer game is launched based on the TV show)(Brief Article)
July 1, 2002... Bob Builds a Park for PC, a new computer game for ages 3 and up with more than 12 activities, is based on the popular animated television show adventures of Bob, his business partner Wendy, and crew of fun-loving, all-action building machines...

ASCC's first annual conference in September. (News & Events).(American Society of Concrete Contractors)(Brief Article)
July 1, 2002... The American Society of Concrete Contractors (ASCC) will hold its first annual conference, "Raising the Bar," on September 12-14, 2002, at the Lowes Vanderbilt Hotel, Nashville, Tenn. It is open to anyone interested in concrete. Joe...

Conference on self-consolidating concrete. (News & Events).(Center for Advanced Cement-Based Materials holds conference)(Brief Article)
July 1, 2002... The Center for Advanced Cement-Based Materials will hold the First North American Conference on the design and use of self-consolidating concrete on the Evanston campus of Northwestern University, November 12-13, 2002. The conference...

Beware of the excavation rats: Part 3--emergency rescue procedures. (Safety Report).
July 1, 2002... Quick! Your co-worker is trapped in an excavation failure. What should you do? First, imagine a well-intentioned helper jumping into the trench just as the secondary failure covers them both. Imagine how they feel. It's like having a...

Project of the month: structure and sculpture: Sea Walk Performance Pavilion.(Brief Article)
July 1, 2002... Brilliantly white against blue skies, the Sea Walk Pavilion's form mimics the ocean waves and sand dunes of its environs--presenting itself as both structure and sculpture. This award-winning design goes beyond the perceived limitations of...

The 2002 CC100: CC's list of the top 100 concrete contractors in America. (Cover Story).(companies ranked by 2001 revenues)(Statistical Data Included)
July 1, 2002... "What doesn't destroy me makes me stronger" could be the nation's slogan for 2001, and that's also an appropriate description of the concrete construction industry's year. It was indeed a challenging year--as is the first half of 2002. Still....

Training for everyone: seminar providers--a guide to training opportunities in the concrete industry.(Directory)
July 1, 2002... The opportunities for education and training in our industry today are endless. And the need for continuing education is critical as our industry continues to grow and as construction becomes more complex. As you'll see from the list on page...

Stamping concrete: managing initial set times. (Decorative Concrete).
July 1, 2002... Every time concrete contractors imprint concrete with patterns and textures there is a potential for problems in achieving uniform-depth impressions and surface textures. Overcoming these problems takes experience and careful planning--and...

Specifications for steps. (Problem Clinic).
July 1, 2002... Q. For a school, I recently poured radius stairs with six risers and reads with an arc length of about 25 feet at the bottom. Mostly due to an icing problem, the architect and the city condemned the stairs, claiming that there were unacceptable...

Vented metal deck. (Problem Clinic).
July 1, 2002... Q. We have installed a metal deck for a roof system on which the engineer has specified a lightweight concrete composite system. We have installed a vented metal decking, but the engineer has requested that solid metal decking be used. With...

Bug holes on sloped surface. (Problem Clinic).
July 1, 2002... Q. We are having a problem with bug holes on a 45-degree sloped formed surface. We have tried everything we can think of to try to cut down on the immense amount of finishing work that we are doing. So far we have tried cleaning the skin on the...

Cutting thick concrete--your options in hand-held saws. (Product Update).
July 1, 2002... RingSaw Let's say you have to cut some square windows and doors into an existing 8-inch-thick concrete wall. Certainly you can set up a wall saw. While this would be the least expensive option in terms of blade cost, there would be...

Lights out in Chicago. (From the Trenches).(Brief Article)(Statistical Data Included)
July 1, 2002... Most large structures in Chicago s Loop have drilled pier foundations. The University of Illinois-Chicago's 1484-space parking structure was no exception. The Walsh Group completed this structure in 1980 on the west side of the Dan Ryan...