Comment on tolerance specs
Specifications for Tolerances for Concrete Construction and Matemis, reported by ACI Committee 117, is available for public comment through January 31, 2005. To read and comment on the document go to www.concrete.org/. On the right side, under Quick Links, click on Tech. documents available for public comment; then click on ACI 117/117R. Please make every effort to review the document and offer feedback. This is an excellent way to find out what's happening on this subject and to have an effect on your industry.
The Tilt-Up Construction and Engineering Manual
The Tilt-Up Concrete Association (TCA) has released the sixth edition of The Tilt-Up Construction and Engineering Manual.
The Manual is the first of a three-volume resource on site-cast Tilt-Up design and construction currently in the works. According to Jim Baty, technical director of TCA, the updated manual not only contains substantial revisions, based on feedback from a wide variety of experts throughout the industry, but also adds considerable content in key areas.
This latest edition includes a comprehensive discussion about the design of insulation systems, a revised and expanded section on details and connections, as well as expanded information on unique project applications. A CD-ROM that contains photos, details, and an electronic copy of the specifications is included with each Manual.
“With so many changes and additions to this Manual,” said Dave Kelly, chair of TCA's technical committee and vice president of engineering for Meadow Burke, “those referring to and using any earlier editions in their business will result in out-of-date code requirements and practices.”
The Manual is available for $115 for TCA members or $145 for nonmembers. For questions, or to order, contact TCA at 319-895-6911 or email@example.com.
Revised Tilt-Up Wind Bracing Guideline
According to Jim Baty, technical director of the TCA, the new Tilt-Up Wind Bracing Guideline addresses recent changes made in a number of states' codes. For example, in response to the mass destruction caused by Hurricane Andrew, Florida building officials updated their codes to more accurately reflect the hurricane threat or risk. Officially adopted statewide in January 2001, the code was amended in 2003 and again this year. Today, design professionals must account for wind speeds ranging from 100 to 150 miles per hour.
David Kelly, vice president of engineering for Meadow-Burke and chair of the TCA Technical Committee, says that revisions to the 1998 Tilt-Up Wind Bracing Guideline were necessary to reflect recent building code changes. “ While all natural disasters can bring destruction to an area, windstorms typically produce the most damage. As such, the TCA Technical Committee sought to produce the most accurate and realistic Guideline resource as a benefit to the industry,” said Kelly.
ACI publication on cast-in-place architectural concrete
The American Concrete Institute announces the availability of new publication 303R-04: “Guide to Cast-in-Place Architectural Concrete.” It is currently available for $43.50 (ACI members $25.00), plus postage and, if applicable, tax. This guide presents recommendations for producing cast-in-place architectural concrete. The importance of specified materials, forming, concrete placement, curing, additional treatment, and inspection, and their effect on the appearance of the finished product are discussed. Architectural concrete requires special construction techniques and materials, and each project will have special requirements. Specific recommendations and information presented in this guide should be used accordingly. To preview the first two pages, for additional information, or to order this publication, go to: www.concrete.org/ads/Promo.asp?SourceID=3&cDestID=l90&pc=EM or call ACI's Member Services Department at 248-848-3800 and mention order code 30304.EM.
New PCA chairman
The Portland Cement Association (PCA) Board of Directors elected James (Jim) A. Repman as chairman earlier this month during the association's board meeting in Boca Raton, Fla. Repman will serve a 2-year term as PCA chairman, succeeding Dan Harrington of Lehigh Cement Company. Repman is the current president and CEO of California Portland Cement and assumes the chairman's role with more than 23 years of experience in the construction materials industry. Additionally, he has chaired PCA's Education Foundation and serves on the Executive Committee. Charlie Sunderland of Ash Grove Cement was elected vice chairman. Sunderland currently chairs PCA's Public Works Committee and is a member of the Executive Committee.
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The system replaces wood studs and traditional walls with a concrete wall enclosed in insulated foam building forms. The forms interlock and are filled with concrete for a nearly fireproof wall with high insulation value, sound-dampening qualities and resistance to wind, insects, and mildew. These ICF products are visually compelling—the foam weighs little and interlocking is simple.