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Chapter 3 - Obtaining Silica-Fume Concrete
Proportioning SFC

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Slide
Once the concrete mixture looks good in the laboratory, it's time to conduct full scale testing. The closer these tests are to actual production conditions, the more valuable they will be. Adjust your proportions as necessary to accommodate going from the laboratory to the field.

Don't forget to work with the contractor at this time -- pumping and finishing tests may be appropriate.