Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-17T17:11:48.003Z Has data issue: false hasContentIssue false
  • English
  • Français

Structural Network Model of Dense Suspension

Published online by Cambridge University Press:  15 February 2011

W. Jiang ,
Nanru Yang  and
Z. Wang
W. Jiang
Affiliation:
Nanjing Institute of Chemical Engineering, Nanjing, 210009, China
Nanru Yang
Affiliation:
Nanjing Institute of Chemical Engineering, Nanjing, 210009, China
Z. Wang
Affiliation:
Nanjing Institute of Chemical Engineering, Nanjing, 210009, China
Get access

Abstract

A structural network model for investigating dense suspension is introduced. The suspension may be considered as particle dispersion in liquid as a continuous phase and it is the combination of the three-dimensional arrangement of the fine particles and the forces acting between them that determines the physico-chemical behavior at all stages of the processing. The model assumes that microstructural features of dense suspension can be represented by simple linear network with a breakdown threshold. The conditions under which such a structural network model is valid for studying flow are discussed. The cement paste, asphalt, sand-water and clay-water system were investigated respectively using this model. An oscillating rheometer and a conventional rotational viscometer were used to carry out this study. The dynamical and viscoelastic properties of dense suspension were observed. All the qualitative features of the network results can be described theoretically by a statistical analysis of this problem. Soil mechanics principles which are focused on critical-state theory were applied to describe the stress-strain behavior of dense suspension.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 289: Symposium M – Flow and Microstructure of Dense Suspensions , 1992 , 69
Copyright
Copyright © Materials Research Society 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Rebinder, P. and Segalova, E., Proc. Int. Congr. Surface Activity, London, 3, p. 492(1957)Google Scholar
2. Roelfstra, P.E., Sadouki, H. and Wittmann, F.H., RILEM Materials and Structure, 18, 331 (1985)Google Scholar
3. Struble, L., Johnson, S., Hartmann, M., Kaetzel, L., and Jennings, H., in Manual for the cement Hydration Simulation Model (NIST Technical Note 1269, U.S. Government Printing Office, Washington, 1989)Google Scholar
4. Bolton, M., Soil Mechanics, (John Wiley & Sons, New York, 1979), p. 70.Google Scholar
5. Popo, A. and Caufin, B., Cem. Concr. Res. 21, 1111–1117 (1991).Google Scholar
6. Roy, D.M., and Asaga, K., Cem. Concr. Res. 9, 731–739 (1979).Google Scholar
7. Jiang, W., Chen, L., and Wang, Z., Manualfor the simulation model of rheological behavior in dense suspension, (Software Report No. 3215, Computer Systems Laboratory, Nanjing Institute of Engineering, 1991)Google Scholar
8. Curtin, W.A. and Scher, H., J. Mater. Res. 5 (3), 535–553 (1990).Google Scholar
9. Novich, B. E., J. Am. Ceram, Soc., 73 (2), 207–12 (1990)Google Scholar
10. Terzaghi, T., Theoretical Soil Mechanics (Wiley, New York, 1943)Google Scholar
11. Saasen, A. and Marken, C., Cem. Concr. Res. 21, 109–119 (1991).Google Scholar