Dispersion of Short Fibers in Cement
Publication: Journal of Materials in Civil Engineering
Volume 17, Issue 4
Abstract
The degree of dispersion of short microfibers in cement, as assessed by electrical resistivity measurement for the case of electrically conductive fibers at a volume fraction below the percolation threshold, is improved by the use of admixtures (namely, silica fume, acrylic particle dispersion, methylcellulose solution, and silane) and fiber surface treatment (such as ozone treatment). Acrylic particle dispersion is more effective than latex particle dispersion.
Get full access to this article
View all available purchase options and get full access to this article.
References
Akkaya, Y., Shah, S. P., and Ghandehari, M. (2003). “Influence of fiber dispersion on the performance of microfiber reinforced cement composites.” Innovations in fiber-reinforced concrete for value, American Concrete Institute, Detroit, 1–18.
Banthia, N., and Sheng, J. (1996). “Fracture toughness of micro-fiber reinforced cement composites.” Cem. Concr. Compos., 18(4), 251–269.
Cao, J., and Chung, D. D. L. (2001a). “Improving the dispersion of steel fibers in cement mortar by the addition of silane.” Cem. Concr. Res., 31(2), 309–311.
Cao, J., and Chung, D. D. L. (2001b). “Carbon fiber reinforced cement mortar improved by using acrylic dispersion as an admixture.” Cem. Concr. Res., 31(11), 1633–1637.
Chen, P.-W., and Chung, D. D. L. (1993). “Concrete reinforced with up to 0.2 vol. % of short carbon fibers.” Composites, 24(1), 33–52.
Chen, P.-W., and Chung, D. D. L. (1995). “Improving the electrical conductivity of composites comprised of short conducting fibers in a non-conducting matrix: The addition of a non-conducting particulate filler.” J. Electron. Mater., 24(1), 47–51.
Chen, P.-W., and Chung, D. D. L. (1996). “Low-drying-shrinkage concrete containing carbon fibers.” Composites, 27, 269–274.
Chen, P.-W., Fu, X., and Chung, D. D. L. (1997). “Microstructural and mechanical effects of latex, methylcellulose, and silica fume on carbon fiber reinforced cement.” ACI Mater. J., 94(2), 147–155.
Chung, D. D. L. (1994). Carbon fiber composites, Butterworth-Heinemann, Stoneham, Mass.
Chung, D. D. L. (2001). “Comparison of submicron diameter carbon filaments and conventional carbon fibers as fillers in composite materials.” Carbon, 39(8), 1119–1125.
Chung, D. D. L. (2002). “Improving cement-based materials by using silica fume.” J. Mater. Sci., 37(4), 673–682.
Chung, D. D. L. (2003). Multifunctional cement-based materials, Marcel Dekker, New York.
Chung, D. D. L. (2004). “Use of polymers for cement-based structural materials.” J. Mater. Sci., 39(9), 2973–2978.
Fu, X., and Chung, D. D. L. (1996). “Degree of dispersion of latex particles in cement paste, as assessed by electrical resistivity measurement.” Cem. Concr. Res., 26(7), 985–991.
Fu, X., and Chung, D. D. L. (1997a). “Improving the bond strength between steel rebar and concrete by ozone treatment of rebar and polymer addition to concrete.” Cem. Concr. Res., 27(5), 643–648.
Fu, X., and Chung, D. D. L. (1997b). “Single fiber electromechanical pull-out testing and its application to studying the interface between steel fiber and cement.” Compos. Interfaces, 4(4), 197–211.
Fu, X., and Chung, D. D. L. (1998a). “Improving the bond strength of concrete to reinforcement by adding methylcellulose to concrete.” ACI Mater. J., 95(5), 601–608.
Fu, X., and Chung, D. D. L. (1998b). “Submicron-diameter-carbon-filament cement-matrix composites.” Carbon, 36(4), 477–480.
Fu, X., Lu, W., and Chung, D. D. L. (1998a). “Ozone treatment of carbon fiber for reinforcing cement.” Carbon, 36(9), 1337–1345.
Fu, X., Lu, W., and Chung, D. D. L. (1998b). “Improving the strain sensing ability of carbon fiber reinforced cement by ozone treatment of the fibers.” Cem. Concr. Res., 28(2), 183–187.
Lu, W., Fu, X., and Chung, D. D. L. (1998). “A comparative study of the wettability of steel, carbon, and polyethylene fibers by water.” Cem. Concr. Res., 28(6), 783–786.
Park, S. B., and Lee, B. I. (1993). “Mechanical properties of carbon-fiber-reinforced polymer-impregnated cement composites.” Composites, 15(3) 153–163.
Park, S. B., Yoon, E. S., and Lee, B. I. (1999). “Effects of processing and materials variations on mechanical properties of lightweight cement composites.” Cem. Concr. Res., 29(2), 193–200.
Pigeon, M., and Cantin, R. (1998). “Flexural properties of steel fiber-reinforced concretes at low temperatures.” Cem. Concr. Compos., 20(5), 365–375.
Shui, Z., and Stroeven, P. (1999). “Uniformity assessment of carbon fibers dispersion in cement paste by impedance measurements.” J. Wuhan Univ. of Tech. Mater. Sci. Ed., 14(1), 52–57.
Toutanji, H. A., El-Korchi, T., Katz, R. N., and Leatherman, G. L. (1993). “Behaviour of carbon fiber reinforced cement composites in direct tension.” Cem. Concr. Res., 23(3), 618–626.
Wen, S., and Chung, D. D. L. (1999). “Piezoresistivity in continuous carbon fiber cement-matrix composite.” Cem. Concr. Res., 29(3), 445–449.
Xu, Y., and Chung, D. D. L. (2000). “Cement-based materials improved by surface treated admixtures.” ACI Mater. J., 97(3), 333–342.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 17 • Issue 4 • August 2005
Pages: 379 - 383
Copyright
© 2005 ASCE.
History
Received: Feb 10, 2004
Accepted: Sep 13, 2004
Published online: Aug 1, 2005
Published in print: Aug 2005
Notes
Note. Associate Editor: Nemkumar Banthia
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.