Title: Highly-Flowable Steel Fiber-Reinforced Concrete Containing Fly Ash

Author(s): M. Kurita and T. Nomura

Publication: Symposium Paper

Volume: 178

Issue:

Appears on pages(s): 159-176

Keywords: admixtures; air entrainment; concrete; fibers; fly ash; slump; steels; strength.

DOI: 10.14359/5977

Date: 6/1/1998

Abstract:
This paper presents the development of a new type of high-performance concrete, a highly-flowable steel fiber-reinforced concrete. This concrete has superior characteristics, such as high flowability and adequate segregation resistance, retention of high flowability, and high-strength at an early age. In order to obtain such properties, it is necessary to use high early-strength portland cement, fly ash, a viscosity agent, an air entraining and a high-range water reducing admixture. Moreover, partially replacing cement with fly ash is found to be an effective method to improve the retention of slump flow. Pumpability of highly-flowable steel fiber-reinforced concrete containing fly ash has also been evaluated from the results of the experimental pumping tests.