Spatial Distribution of Aligned Short Fibers in Cement Composites
Publication: Journal of Materials in Civil Engineering
Volume 12, Issue 3
Abstract
The effect of fiber length on the mechanical properties of extruded cement-based polyvinyl alcohol fiber composites is strongly associated with the distribution of the fibers in the material. Statistical methods from the theory of point processes can be used to describe these patterns by straightforward and easily calculated statistics. The intensity of the fibers in different parts of a sample yields a general description of the fiber pattern, but the effects of length are expressed through second-moment measures that are found to be distinct for different fiber lengths and that are strongly associated with material properties.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Akkaya, Y., Peled, A., and Shah, S. P. (2000). “Parameters related to fiber length and processing in fiber reinforced cementitious composites.” Mat. and Struct., Paris, in press.
2.
Baddeley, A. J., and Silverman, B. W. (1984). “A cautionary example on the use of second-order methods for analyzing point patterns.” Biometrics, 40, 1089–1093.
3.
Benbow, J. J., Lawson, T. A., Oxley, E. W., and Bridgewater, J. (1989). “Prediction of paste extrusion pressure.” Ceramic Bull., 68(10), 1821–1824.
4.
Bentur, A. ( 1989). “Fiber reinforced cementitious materials.” Materials science of concrete, J. P. Skalny, ed., American Ceramic Society, Westerville, Ohio, 223–285.
5.
Betterman, L. R., Ouyang, C., and Shah, S. P. (1995). “Fiber-matrix interface in microfiber-reinforced mortar.” Advanced Cement-Based Mat., 2, 53–61.
6.
Blackburn, S., and Lawson, T. A. (1992). “Mullite-alumina composites by extrusion.” J. Am. Ceramic Soc., 75(4), 953–957.
7.
Cressie, N. A. C. (1993). Statistics for spatial data, Revised Ed., Wiley, New York.
8.
Diggle, P. J. (1983). Statistical analysis of spatial point patterns, Academic, San Diego.
9.
Hackett, R. M., and Slattery, K. T. (1992). “Modeling stiffness degradation in filamentary composite materials.”J. Mat. in Civ. Engrg., ASCE, 4(2), 196–211.
10.
Kanda, T., and Li, V. C. (1998). “Interface property and apparent strength of high-strength hydrophilic fiber in cement matrix.”J. Mat. in Civ. Engrg., ASCE, 10(1), 5–13.
11.
Li, V. C. (1992). “A simplified micromechanical model of compressive strength of fiber reinforced cementitious composites.” Cement and Concrete Compos., Barking, U.K., 14, 131–141.
12.
Maggio, R. D., Franchini, M., Guerrini, G., Poli, S., and Migliaresi, C. (1997). “Fiber-matrix adhesion in fiber reinforced CAC-MDF composites.” Cement and Concrete Compos., Barking, U.K., 19, 139–147.
13.
Price, D. B., and Reed, J. S. (1983). “Boundary conditions in electrical porcelain extrusion.” Ceramic Bull., 62(12), 1348–1350.
14.
Ripley, B. D. (1981). Spatial statistics, Wiley, New York.
15.
Ripley, B. D. (1988). Statistical inference for spatial processes, Cambridge University Press, London.
16.
Shah, S. P. (1991). “Do fibers increase the tensile strength of cement-based materials.” ACI Mat. J., 88(6), 595–602.
17.
Shah, S. P., and Ouyang, C. (1991). “Mechanical behavior of fiber reinforced cement-based composites.” J. Am. Ceramic Soc., 74(11), 2727–2753.
18.
Shao, Y., and Shah, S. P. (1997). “Mechanical properties of PVA fiber reinforced cement composites fabricated by extrusion processing.” ACI Mat. J., 94(6), 555–564.
19.
Srinavasan, R., DeFord, D., and Shah, S. P. (1999). “The use of extrusion rheometry in the development of extruded fiber reinforced cement composites.” Concrete Sci. and Engrg., 1, 26–36.
20.
Stoyan, D., Kendall, W. S., and Mecke, J. (1995). Stochastic geometry and its applications, 2nd Ed., Wiley, New York.
21.
Zollo, R. F. (1997). “Fiber-reinforced concrete: An overview after 30 years of development.” Cement and Concrete Compos., Barking, U.K., 19, 107–122.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 12 • Issue 3 • August 2000
Pages: 272 - 279
History
Received: Apr 22, 1999
Published online: Aug 1, 2000
Published in print: Aug 2000
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.