Experimental Fracture Behavior of Polypropylene Fiber Reinforced Concrete Specimens with Variable Width

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This paper presents a study of the influence of polypropylene fiber reinforcement of concrete on the fracture behavior and edge effect in elements of variable width. Experimental results of fracture behavior of specimens with different cross sections are available. It has obtained more ductile behavior for specimens with trapezoidal sections (with increasing width) and inverted T-sections. Therefore, we analyze the influence of the fibers addition on the fracture behavior of these sections. Sections with gradual variation of wide and sudden change of width were analyzed. Results allow us to quantify the increase of ductility and fracture performance improvements produced by polypropylene fiber addition to concrete in these sections.

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Key Engineering Materials (Volumes 488-489)

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642-645

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September 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] RILEM TC-50 FMC: Determination of the Fracture Energy of Mortar and Concrete by Means of Three-Point Bend Tests on Notched Beams. Materials and Structures, Vol. 18 (1995), pp.285-290.

DOI: 10.1201/9781482271362-58

Google Scholar

[2] Z.P. Bazant and M.T. Kazemi: Size dependence of concrete fracture energy determined by RILEM work-of-fracture method. International Journal of Fracture, Vol. 51 (1995), pp.121-138.

DOI: 10.1007/978-94-011-3638-9_9

Google Scholar

[3] X. Hu and F. Wittmann: Size effect on toughness induced by crack close to free surface. Engineering Fracture Mechanics, Vol. 65, pp.209-221, (2000).

DOI: 10.1016/s0013-7944(99)00123-x

Google Scholar

[4] X. Hu y K. Duan: Size effect: Influence of proximity of fracture process zone to specimen boundary. Engineering Fracture Mechanics, V. 74 (2007), pp.1093-1100.

DOI: 10.1016/j.engfracmech.2006.12.009

Google Scholar

[5] H.M. Abdalla and B.L. Karihaloo: Determination of size-independent specific fracture energy of concrete from three-point bend and wedge splitting tests. Magazine of Concrete Research, V. 55 (2003), pp.133-141.

DOI: 10.1680/macr.2003.55.2.133

Google Scholar

[6] K. Duan, X. Hu and F. Wittmann: Thickness effect on fracture energy of cementitious materials. Cement and Concrete Research, V. 33 (2003), pp.499-507.

DOI: 10.1016/s0008-8846(02)00997-3

Google Scholar

[7] F. Medina, H. Cifuentes and M. Alcalde: Efecto tamaño y ductilidad en hormigones de baja y alta resistencia reforzados con fibras de polipropileno. Cemento – Hormigón, Nº. 930 (2009), pp.32-42.

DOI: 10.3989/mc.2012.00911

Google Scholar

[8] G. Ruiz, M. Elices and J. Planas: Experimental study of fracture of lightly reinforced concrete beams, Materials and Structures, V. 31 (1998), pp.683-691.

DOI: 10.1007/bf02480445

Google Scholar

[9] Z.P. Bazant: Scaling of Structural Strength. (Elsevier, Great Britain, 2002).

Google Scholar