Title: Effects of Silica Fume on Creep and Shrinkage of Steel Fiber Reinforced Concrete

Author(s): J. C. Chern and C. Y. Chang

Publication: Symposium Paper

Volume: 149

Issue:

Appears on pages(s): 561-574

Keywords: aggregates; compressive strength; creep properties; fiber reinforced concrete; mix proportioning; shrinkage; silica fume; Materials Research

DOI: 10.14359/4098

Date: 10/1/1994

Abstract:
Presents the results of an investigation on the long-term deformation of steel fiber reinforced concrete containing silica fume. The influence of loading ages on the creep and ages of curing on the shrinkage of specimens was investigated. The volume fraction of steel fibers used in concrete is 0, 1, and 2 percent. The addition of silica fume is 0, 5, and 10 percent by weight of cement. Test results indicate that the combined effect of fibers and silica fume reduces the creep and shrinkage and enhances the development of compressive strength of concrete. At specific silica fume content (10 percent), the effect of increasing fiber content to reduce creep and shrinkage decreases gradually as the fiber content increases. This phenomena is similar to the addition of silica fume in concrete with 1 percent volume fraction of steel fibers.