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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
Producing High-Performance Concrete Bridges

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Slide
It doesn't do any good to design a bridge using high-strength concrete girders if a precast producer cannot cast the members.

Bed capacity may be an issue for very high prestressing forces.

Consider the heat of hydration if you are looking at a very rich mixture. It may be appropriate to extend the release and stripping time to allow for slower strength development and less heat evolution. It is important to monitor concrete temperatures because they can be higher than those achieved when steam curing is used.

Finally, don't forget that very long girders will be difficult to transport to the project site and to erect once there. Look into this aspect before designing the structure.