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Flexural Behavior of Cementitious Composites Reinforced by Synthetic Fibers | ||
| AUT Journal of Modeling and Simulation | ||
| مقاله 8، دوره 43، شماره 1، تیر 2011، صفحه 55-61 اصل مقاله (863.8 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/miscj.2011.156 | ||
| نویسندگان | ||
| H. R. Pakravani؛ M. Jamshidiii؛ M. Latifiii | ||
| چکیده | ||
| The application of fibers to reinforce cementitious materials is a well-known subject. At first, asbestos fibers are used in industrial process to produce fiber reinforced cement sheets. Thereafter, various types of synthetic fibers are produced and used as asbestos substitutes. The aim of the present work is to evaluate the effect of synthetic fibers on the flexural behavior of cementitious composites. In this study, the flexural strength of cement-based materials reinforced by three different types of synthetic fibers (polypropylene (PP), polyamide 66 (PA66) and acrylic (PAN)) is studied at various volume contents. It was found that although PAN and PA66 improve maximum flexural load borne by the cementitous composite before failure, the PAN fibers improves toughness of cementitous composites about 30% more than PP and PA66 fibers. | ||
| کلیدواژهها | ||
| Flexural behavior؛ Fiber؛ Cementitious composites | ||
| عنوان مقاله [English] | ||
| Flexural Behavior of Cementitious Composites Reinforced by Synthetic Fibers | ||
| چکیده [English] | ||
| The application of fibers to reinforce cementitious materials is a well-known subject. At first, asbestos fibers are used in industrial process to produce fiber reinforced cement sheets. Thereafter, various types of synthetic fibers are produced and used as asbestos substitutes. The aim of the present work is to evaluate the effect of synthetic fibers on the flexural behavior of cementitious composites. In this study, the flexural strength of cement-based materials reinforced by three different types of synthetic fibers (polypropylene (PP), polyamide 66 (PA66) and acrylic (PAN)) is studied at various volume contents. It was found that although PAN and PA66 improve maximum flexural load borne by the cementitous composite before failure, the PAN fibers improves toughness of cementitous composites about 30% more than PP and PA66 fibers. | ||
| کلیدواژهها [English] | ||
| Flexural behavior, Fiber, Cementitious composites | ||
| مراجع | ||
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[1] A. M. Pye, "A Review of asbestos substitute materials industrial applications", J. Hazard. Mater., vol. 3, pp. 125-147, Oct. 1979. [2] R. S.P. Coutts,"A review of Australian research into natural fiber cement composites", Cement Concr. Compos., vol. 27, pp.518-526, May 2005. [3] E. M. Bezerra, A. P. Joaquim, and H. S. Jr., "Some Properties of fiber Cement composites with Selected Fibers", in Proc. 2004 Conferência Brasileira de Materiais e Tecnologias Não-Convencionais – Habitações e Infra- Estrutura de Interesse Social, pp. 33-43. [4] R. F. Zollo, "Fiber-reinforced Concrete: an Overview after 30 Years of Development", Cement Concr. Compos., vol. 19, pp. 107-122, May 1997. [5] B. Felekoğlu, K. Tosun, and B. Baradan, "Effects of fibre type and matrix structure on the mechanical performance of self-compacting micro-concrete composites", Cement Concr. Compos., vol. 39, pp. 1023-1032, Nov. 2009. [6] P. S. Song, S. Hwang, and B. C. Sheu, "Strength properties of nylon- and polypropylene-fiber-reinforced concretes", Cem. Concr. Res., vol. 35, pp. 1546-1550, Aug. 2005. [7] D. j. Kim, A. E. Naaman, and S. El-Tawil " Comparative flexural behavior of four fiber reinforced cementitious composites", Cement Concr. Compos., vol. 30, pp. 917-928, Nov. 2008. | ||
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