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

NRMCA Sustainable Conference
April 12 - 15, 2010
Tempe, AZ

International Parking Institute Conference & Expo
May 10 - 12, 2010
Mandolay Bay - Las Vegas, NV

International Bridge
Conference 2010

June 6 - 9, 2010
David L. Lawrence Convention Center - Pittsburgh, PA

ACI Fall 2010 Convention
October 24 - 28, 2010
The Westin Convention Center -- Pittsburgh, PA

Chapter 2 - Using Silica Fume in Concrete
Improving Durability

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These values are typical for concrete containing about 360-390kg/m3 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.