Effect of Condensed Silica Fume on the Strength Development of Concrete

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Title: Effect of Condensed Silica Fume on the Strength Development of Concrete

Author(s): Malvin Sandvik and Odd E. Gjorv

Publication: Special Publication

Volume: 91

Issue:

Appears on pages(s): 893-902

Keywords: age-strength relation; cement content; compressive strength; concretes; silica.

Date: 2/1/1986

Abstract:
The effect of condensed silica fume on the strength deve-lopment in concrete was studied by replacement of 0, 5,10, and 20% cement by silica fume. No admixtures was used. For all the mixes,about the same strength was obtained up to 7 days. From then on,the mixes with silica fume produced an increased strength development compared to that of pure cement. At a partial replacement of cement by 20%, the compressive strength at 28 and 90 days was increased by 43 and 55%, respectively, with respect to the strength at 7 days.