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http://dx.doi.org/10.4334/JKCI.2008.20.6.731

Fiber Orientation Impacts on the Flexural Behavior of Steel Fiber Reinforced High Strength Concrete  

Kang, Su-Tae (Korea Institute of Construction Technology)
Kim, Yun-Yong (Dept. of Civil Engineering, Chungnam National University)
Lee, Bang-Yun (Dept. of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Kim, Jin-Keun (Dept. of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Journal of the Korea Concrete Institute / v.20, no.6, 2008 , pp. 731-739 More about this Journal
Abstract
To evaluate the fiber orientation characteristics and estimate its effect on the flexural strength of steel fiber reinforced ultra high strength concrete with directions of concrete placing, we developed an image processing technique and carried out the flexural test to quantify the effect of fiber orientation characteristics on the flexural strength as well. The image processing technique developed in this study could evaluate quantitatively the fiber orientation property by the use of dispersion coefficient, the number of fibers in a unit area, and fiber orientation. It was also found that the fiber orientation characteristics were dependent on the direction of concrete placing. Fiber orientation characteristic was revealed to strongly affect the ultimate flexural strength, while hardly affecting the first cracking strength. Theoretical model for flexural strength was applied to compare with test results, which exhibited a good agreement.
Keywords
ultra high strength concrete; steel fiber; fiber orientation; image processing; flexural strength;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Cox, H. L., 'The Elasticity and Strength of Paper and Other Fibrous Materials,' British Journal of Applied Physics, Vol. 3, 1952, 72 pp.   DOI   ScienceOn
2 Kim, E. G., Park, J. K., and Jo, S. H., 'A Study of Fiber Orientation during the Injection Molding of Fiber-Reinforced Polymeric Composites (Comparison between Image Processing Results and Numerical Simulation),' Journal of Material Processing Technology, Vol. 111, 2001, pp. 225-232   DOI   ScienceOn
3 김윤용, 이방연, 김정수, 김진근, '이미지 프로세싱 기법을 이용한 섬유복합재료의 정량적인 섬유분산성 평가,' 비파괴검사학회지, Vol. 27, No. 2, 2007, pp. 148-156   과학기술학회마을
4 Guild, F. J. and Summerscales, J., 'Microstructural Image Analysis Applied to Fibre Composites Materials: A Review,' Composites, Vol. 24, No. 5, 1993, pp. 383-393   DOI   ScienceOn
5 Otsu, N. A., 'Threshold Selection Method from Gray Level Histogram,' IEEE Transactions on Systems,Man, and Cybernetics, Vol. SMC-9, No. 1, 1979, pp. 62-66
6 Richard, P. and Cheyrezy, M., 'Composition of Reactive Powder Concrete,' Cement and Concrete Research, Vol. 25, No. 7, 1995, pp. 1501-1511   DOI   ScienceOn
7 Shah, S. P., 'Do Fibers Increase the Tensile Strength of Cement-based Matrixes?,' ACI Materials Journal, Vol. 88, No. 6, 1991, pp. 595-602
8 Chiang, C. R., 'A Statistical Theory of the Tensile Strength of Short Fiber-reinforced Composites,' Composites Science and Technology, Vol. 50, No. 4, 1994, pp. 479-482   DOI   ScienceOn
9 Banthia, N., Bindiganavile, V., and Mindess, S., 'Impact Resistance of Fiber Reinforced Concrete,' Proceeding of RILEM 4th International Workshop on High Performance Fiber Reinforced Cement Composites(HPFRCC4), Ann Arbor, USA, 2003, pp. 117-131
10 Shah, S. P., Sarigaphuti, M., and Karguler, M. E., 'Comparison of Shrinkage Cracking Performance of Different Types of Fibers and Wiremesh,' Fiber Reinforced Concrete Developments and Innovations, Michigan, American Concrete Institute, 1994, pp. 1-18
11 Vaxman, A. and Narkis, M., 'Short-Fiber-Reinforced Thermoplastics: III. Effect of Fiber Length on Rheological Properties and Fiber Orientation,' Polymer Composites, Vol. 10, 1989, pp. 454-461   DOI
12 Swamy, R. N,, Magnet, P. S., and Rao, C. V. S. K., 'The Mechanics of Fiber Reinforcement of Cement Matrices,' An International Symposium: Fiber Reinforced Concrete, American Concrete Institute, Detroit, 1974, pp. 1-28
13 강수태, 박정준, 류금성, 고경택, 김성욱, 'UHPC의 직접인 장응력과 균열개구변위와의 관계에 관한 실험적 연구,' 한국콘크리트학회 봄학술발표회 논문집, 20권, 1호, 2008, pp. 433-436
14 Han, K. H. and Im, Y. T., 'Numerical Simulation of Threedimensional Fiber Orientation in Short-Riber-Reinforced Injection- Molded Parts,' Journal of Material Processing Technology, Vol. 124, 2002, pp. 366-371   DOI   ScienceOn
15 Bentur, A., 'Fiber-reinforced Cementitious Materials,' Materials Science of Concrete, The American Ceramic Society, 1989, pp. 225-285
16 Xia, M. Hamada, H., and Maekawa, Z., 'Flexural Stiffness of Injection Molded Glass Fiber Reinforced Thermoplastics,' International Polymer Processing, Vol. 10, No. 1, 1995, pp. 74-81   DOI
17 Aveston, J., Mercer, R. A., and Sillwood, J. M., 'Fiber Reinforced Cements-scientific Foundations for Specifications, In Composites-standards, Testing and Design,' Proceedings of National Physical Laboratory Conference, UK, 1974, pp. 93-103
18 Yang, Y., 'Methods Study on Dispersion of Fibers in CFRC,' Cement and Concrete Research, Vol. 32, 2002, pp. 747-750   DOI   ScienceOn
19 Laws, V., 'The Efficiency of Fibrous Reinforcement of Brittle Matrices,' Journal of Physics D, Applied Physics, Vol. 4, 1971, pp. 1737-1746   DOI   ScienceOn
20 Piggott, M. R., 'Short Fiber Polymer Composites: A Fracture- based Theory of Fibre Reinforcement,' Journal of Composite Materials, Vol. 28, No. 7, 1994, pp. 588-606   DOI
21 Chermant, J. L., Chermant, L., Coster, M., Dequiedt, A. S., and Redon, C., 'Some Fields of Applications of Automatic Image Analysis in Civil Engineering,' Cement and Concrete Composites, Vol. 23, 2001, pp. 157-169   DOI   ScienceOn
22 Benson, S. D. P. and Karihaloo, B. L., 'CARDIFRCManufacture and Constitutive Behavior,' High Performance Fiber Reinforced Cement Composites (HPFRCC4), Ann Arbor, Mich. 2003, pp.65-79
23 Akkaya, Y., Shah, S. P., and Ankenman, B., 'Effect of Fiber Dispersion on Multiple Cracking of Cement Composites,' Journal of Engineering Materials in Civil Engineering, Vol. 127, No. 4, 2001, pp. 311-316
24 Ozyurt, N., Woo, L. Y., Mason, T. O., and Shah, S. P., 'Monitoring Fiber Dispersion in Fiber-Reinforced Cementitious Materials: Comparison of AC- Impedance Spectroscopy and Image Analysis,' ACI Materials Journal, Vol. 103, No. 5, 2006, pp. 340-347
25 Bonneau, O., Lachemi, M., Dallaire, E., Dugat, J., and Aitcin, P. C., 'Mechanical Properties and Durability of Two Industrial Reactive Powder Concretes,' ACI Materials Journal, Vol. 94, No. 4, 1997, pp. 286-290
26 Allen, H. G., 'The Strength of Thin Composites of Finite Width, with Brittle Matrices and Random Discontinous Reinforcing Fibres,' Journal of Physics D, Applied Physics, Vol. 5, 1972, pp. 331-343   DOI   ScienceOn
27 Poitou, A., Chinesta, F., and Bernier, G., 'Orientating Fibers by Extrusion in Reinforced Reactive Powder Concrete,' Journal of Engineering Mechanics, Vol. 127, No. 6, 2001, pp. 593-598   DOI   ScienceOn
28 Mobasher, B., Stang, H., and Shah, S. P., 'Microcracking in Fiber Reinforced Concrete,' Cement and Concrete Research, Vol. 20, 1990, pp. 665-676   DOI   ScienceOn