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ACI Spring 2010 Convention
March 21 - 25, 2010
Marriott Rivercenter Hotel & Henry B. Gonzalez Convention Center -- San Antonio, TX

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May 10 - 12, 2010
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June 6 - 9, 2010
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October 24 - 28, 2010
The Westin Convention Center -- Pittsburgh, PA

 
Chapter 2 - Using Silica Fume in Concrete
Improving Durability

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Slide
These values are typical for concrete containing about 600-650 lb/yd3 of cement with a w/cm < 0.40.

The "strength trap" is the situation in which strength achieved with silica-fume concrete will greatly exceed most project specifications. This factor may cause concrete producers and contractors to relax their control over the concrete production and curing. While strength may be adequate for structural design, rapid chloride permeability values may not be within specifications.