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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: Toughness of Steel Fiber Reinforced Polymer Cement Matrix Composites
Author(s): Xu Bin-bin and Yao Lian
Publication: Special Publication
Appears on pages(s): 143-158
Keywords: bend tests; composite materials; cracking (fracturing);
fiber reinforced concretes; metal fibers; mortars (material);
plastics, polymers, and resins; toughness
Abstract:In China steel fiber reinforced concrete has been used in several projects including the highway, street, overlay of airfield pavement, mining and tunneling, explo-sion- proof gate, etc. In this paper the toughness and the toughness index of steel fiber reinforced polymer cement matrix composites are studied. In particular, Jm, computed by an approximate for-mular of J-integral under the pe ak 1oad of load-deflection curve, as a toughness index to t hese composites is discussed. Three-point bend tests both on the notched beams and the unnotched beams of steel fiber cement composites are per-formed. O n the basis of results, the effects of the follow-ing factors: matrix, fiber content, aspect ratio, and fiber diameter, on the toughness of the steel fiber cement compos-ites are analyzed. As a result of the synergistic effect of steel fiber, polymer and matrix, the toughness of steel fiber reinforced polymer cement concrete is much higher than that of steel fiber reinforced concrete.
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