Prediction of Strength Development for Silica Fume Concrete

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Title: Prediction of Strength Development for Silica Fume Concrete

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

Publication: Special Publication

Volume: 132

Issue:

Appears on pages(s): 987-996

Keywords: aggregates; compressive strength; concretes; hydration; pozzolanic reactions; silica fume; strength; Materials Research

Date: 5/1/1992

Abstract:
Silica fume has an accelerating effect on the early hydration of portland cement. Also, silica fume reduces the retarding effect of lignosulfates. At standard curing conditions, the contribution to strength from the pozzolanic reaction takes place primarily at 5 to 7 days. As a result, existing equations for prediction of strength development based on pure portland cement are no longer valid for concrete with silica fume. Some new equations for concrete with various contents of silica fume are presented.