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Title: Ultimate strength of fiber-reinforced concrete under cyclic flexural loading
Authors: United States. Assistant Secretary of the Army (R & D).
O'Neil, Edward F.
Keywords: Concrete beams
Cyclic flexural loading
Endurance limit
Fatigue strength
Fiber-reinforced concrete
Pullout resistance
Ultimate flexural strength
Publisher: Concrete Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; C-78-5.
Description: Miscellaneous Paper
Abstract: Cyclic flexural fatigue tests were conducted on 6-by 6-by 36-in. fiber-reinforced concrete beams containing 0.5-in. and 1. 0-in. steel fibers to determine the change in ultimate flexural strength under fatigue loading. The beams were cycled at 3 Hz until failure occurred or 2 million cycles of load terminated the (45.22 percent) 1. 0-in. fibers tests. The beams with 0.5-in. fibers produced a smaller change in ultimate flexural strength than the beams containing (49.68 percent). The method of failure of the beams was by a gradual breakage of the bond between the steel and paste after the development of a crack in the concrete matrix, resulting in pullout of the fibers from the matrix.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Miscellaneous Paper

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