Bending Fatigue Strength of Roller- Compacted Concrete with Fly Ash as a Substitute for Fine Aggregate

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Title: Bending Fatigue Strength of Roller- Compacted Concrete with Fly Ash as a Substitute for Fine Aggregate

Author(s): E. Matsuo, K. Hino, and S. Hamada

Publication: Special Publication

Volume: 242

Issue:

Appears on pages(s): 23-36

Keywords: bending strength; fatigue; fly ash; roller compacted concrete.

Date: 4/1/2007

Abstract:
In Japan, sea sand is used frequently as fine aggregate for concrete. The mining of sea sand has been more difficult year by year for environmental reasons. This would be a serious problem in manufacturing concrete. The amount of fly ash has been increasing gradually in Japan, therefore the utilization of fly ash as the substitution of fine aggregate has a significant advantage. In this study, bending fatigue test of roller compacted concrete was carried out, in which all fine aggregate was replaced with fly ash. The obtained S-N curve was compared with that of normal concrete and general roller compacted concrete. Scatter of fatigue strength was also determined.