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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
 

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Slide
This slide shows the data on the previous slide plotted as a percentage of the maximum value for both the Rapid Chloride Permeability Test (RCPT) and the 120-day diffusivity.

Note that reducing the water content does not have nearly as significant an effect as holding water content constant and adding silica fume as a replacement at the levels shown. The most significant reduction comes from reducing water content and adding silica fume. Also note that both tests show the same relative performance.

Hooton, R. D., Pun, P., Kojundic, T., Fidjesol, P., "Influence of Silica Fume on Chloride Resistance of Concrete," Proceedings, PCI/FHWA International Symposium on High-Performance Concrete, New Orleans, October 1997, pp. 245-256.