Investigations on Durability of High-Volume Fly Ash Concrete


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Title: Investigations on Durability of High-Volume Fly Ash Concrete

Author(s): N. Kawaguchi, K. Kohno, Y. Kurose and T. Bakoshi

Publication: Special Publication

Volume: 179


Appears on pages(s): 715-730

Keywords: abrasion resistance; adiabatic conditions; compressive strength; durability; fly ash; freeze thaw durability; marine environments

Date: 6/1/1998

The durability and strength characteristics of high-volume fly ash concrete were studied in order to utilize fly ash, an industrial by-product from coal fired thermal power plants, as a typical admixture for concrete. The results of this study were as follows: (1) The strength development of high-volume fly ash concrete is higher than that of conventional concrete. (2) There is an optimum mixing ratio of fly ash, in which the compressive strength reaches a maximum level. (3) Freezing and thawing resistance of high-volume fly ash concrete is almost the same as that of conventional concrete. (4) Abrasion resistance, durability in marine environment, and water-tightness are improved by the use of high-volume fly ash. (5) Adiabatic temperature rise can be reduced compared with that of concrete without fly ash.