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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Influence of Steel Fibers on Cracking Behavior of Ordinary Reinforced Concrete Structures
Author(s): L. Vandewalle
Publication: Special Publication
Appears on pages(s): 467-487
Keywords: beam; compressive strength; concretes; crack
Abstract:The cracking behaviour of concrete beams having longitudinal tension reinforcement and various combinations of volume and aspect ratio of hooked end steel fibers was investigated experimentally. Eight full-scale beams have been tested. The section dimensions (200 x 350 mm2), span length (3250 mm), concrete compressive strength and longitudinal tension reinforcement were kept constant for all beams. The beams were tested at a cube compressive strength of about 40 MPa. The mechanical properties of the steel fiber reinforced concrete under tension were determined according to the Belgian standard NBN B15-238. The addition of steel fibers decreases both the crack spacing and the crack width. A greater reduction of the crack width, crack spacing respectively, can be noticed if steel fibers with a higher aspect ratio are used. Besides the experimental program also a theoretical study has been executed : a modification of the RILEM TC162-TDF-model to predict crack width is proposed.
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