April 2004 Table of Contents

Features Harmonizing with Nature

This privately commissioned bridge in Hillsborough, N.C., is designed to offer a place to sit down or stretch out, have a conversation, and watch the large Japanese koi that swim beneath. Your first sight of the bridge comes as a surprise. The 10 x 32 x 3-foot sculpture was designed by Andy Fleishman, using 3/8-inch reinforcing bars to draw the basic form in the air and then filling in with more rebar and expanded metal. Read more

Features Material Selection Guide: Slabs on Grade

The article discusses shear transfer devices, steel fibers, and vapor barriers. Read more

Features Building Concrete Parking Lots

Traditionally, concrete parking lots have not competed well with asphalt, especially on an initial cost basis. Now new equipment and warranties are making life-cycle costs more attractive to customers. But no one is approaching this with as much zeal and success as Len Swederski, owner of Spring Grove, Ill.-based Swederski Concrete Construction. Read more

Artistry Preview Artistry in Concrete

In recognition of this growing interest in creative decorative concrete, Concrete Construction and the Decorative Concrete Council (DCC), a council of the American Society of Concrete Contractors (ASCC), sponsored the second Artistry in Decorative Concrete demonstrations at the 2004 World of Concrete. Focusing on creativity, the goal was to show visitors to the demos the endless possibilities of decorative concrete and to encourage them to be more creative in their own efforts. Read more

Decorative Concrete Specifying Decorative Concrete; Setting the Scene for Win-Win Projects

Because owners pay more for a decorative concrete surface than for a plain concrete finish, they naturally expect the workmanship and quality to be much better—like expecting a Mercedes to perform better than a Chevy. But this doesn’t accurately define the situation because both plain and decorative concrete work can be well executed or poorly executed. To write a fair specification for decorative concrete requires a better understanding of the issues. Specifications for decorative concrete should include creativity, coloration, and additional durability. Read more

Problem Clinic A Problem With Lignite

I had a concrete driveway poured 7 days ago, and noticed a couple days ago small pop marks throughout the concrete. The concrete finisher spoke with the ready-mix producer, and the salesperson said it could be lignite. Do you have any suggestions on what Read more

Problem Clinic Pile Cap Design Aid?

I am designing pile caps for 2-, 3-, and 4-pile groups. What reference can I use that covers pile cap design procedures for both flexure and punching shear? Read more

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