03 00 00 Concrete

Category Archives: 03 00 00 Concrete

Specifiers cautioned in use of adhesive anchors

Contractors in Arizona participate in an American Concrete Institute-Concrete Reinforcing Steel Institute (ACI-CRSI) adhesive anchor installer certification program. Photo courtesy ACI Arizona Chapter

by Gary Higbee, CSI, AIA

Designing proper construction details is an important part of architecture and engineering practice that involves more than just a grasp of building technology. If designers are not also alert to market conditions, then their details—no matter how elegant—can be ineffective and hinder the pace of a project. Overlooking the complications surrounding the specification of adhesive anchors is a prime example, as recent code changes regarding their use threaten to stall building projects in some of the United States’ largest jurisdictions.

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Innovation with Insulating Concrete Forms

Photo courtesy Nudura Insulated Concrete Forms Ltd.

This article explores some of the benefits realized through the speed of construction enabled by specifying insulating concrete forms (ICFs)—a technology that combines reinforced concrete with thermal insulation. The piece profiles diverse projects—a school, a multi-family midrise, a big box, and a hotel—in detailing the cost efficiencies. It also looks at ICF design possibilities, installation techniques, and accessory products.

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Don’t Seal Your Fate: Considerations for parking garage surface treatments

All photos © Hoffmann Architects Inc.

Parking decks must be protected from the harmful effects of moisture and chlorides, but there is a growing preconception installing a traffic-bearing membrane is a one-way ticket to the garage equivalent of immortality. While a traffic-bearing membrane may work in many situations, consideration is necessary to determine if this costly investment is the correct solution for the garage’s needs. Identifying product properties and applying appropriate selection criteria can help specifiers develop solutions that protect now, while considering treatment options for the future.

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Bridging the Specification Gap between Divisions 03 and 09: Concrete and floorcovering associations unite

Photo © Michael Marxer (marxerphotography.com). Photo courtesy Mapei

Division 03 specifies concrete floor surface flatness requirements to be installed by the concrete contractor. However, Division 09 specifies the concrete floor surface flatness for the flooring installer that must be met before installing the floorcovering. Cooperation between the American Society of Concrete Contractors (ASCC) and six flooring associations has led to a solution for bridging the specification gap between Divisions 03 and 09.

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The Track to Span 3: Genesis of the innovative Manhattan West Platform

Photos courtesy Entuitive

The Manhattan West Platform is the first stage in a vibrant urban development that will serve as the foundation for public and new commercial space. This article discusses the unique structural challenges in designing an innovative platform structure over the tracks leading into New York City’s Penn Station while minimizing, or completely avoiding, disruption of rail service to North America’s busiest rail corridor.

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Mix Design Fundamentals: Considerations for concrete for slabs-on-ground

Photo © BigStockPhoto/Theerapol Pongkangsananan

Interior concrete should not crack or curl excessively requiring grinding before the flooring can be installed; exterior concrete should not crack or deteriorate prematurely from freeze-thaw cycles. Some argue concrete will always crack, and nothing can be done about it. This is most often an excuse when poor design or poor placement has resulted in excessive cracking or the real problem is too much mix design water, lack of welded wire reinforcement, or too little aggregate and poor curing methods.

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