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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

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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 1 - Understanding Silica Fume
Silica Fume Reactions

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This slide presents a comparison of some of the physical and chemical characteristics of silica fume, fly ash, and portland cement.

Note that the surface area measurements for silica fume are done using a nitrogen absorption method (BET) while those for fly ash and portland cement are typically done using an air permeability method (Blaine).

Note also that the pozzolanic activity testing was done using a constant water content for the silica fume mixtures rather than a constant flow.