Hostname: page-component-848d4c4894-hfldf Total loading time: 0 Render date: 2024-05-27T03:23:40.462Z Has data issue: false hasContentIssue false

The Flexural Strength and Fracture Toughness of a Normal and a High Strength Polymer Modified Portland Cement

Published online by Cambridge University Press:  22 February 2011

N. B. Eden
Affiliation:
Department of Materials Science and Engineering, University of Surrey, Guildford, UK
J. E. Bailey
Affiliation:
Department of Materials Science and Engineering, University of Surrey, Guildford, UK
Get access

Abstract

A model has been developed for the flexural strength of Portland cement pastes, based upon observed fracture behaviour of both normal and high strength pastes. Fibrillar or foil-like elements pull apart at a yield stress which is characteristic of the number of elements and interfacial shear strength. The former can be maximised by using a low water/cement ratio and the latter by inclusion of water-soluble polymer, followed by suitable drying. It is proposed that this is the mechanism by which high strength may be attained in Portland cement.

Type
Research Article
Copyright
Copyright © Materials Research Society 1985

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. Higgins, D.D. and Bailey, J.E., J.Mater.Sci. 11, 1995 (1976).10.1007/PL00020325Google Scholar
2. Higgins, D.D. and Bailey, J.E., Proceedings of the Conference on Hydraulic Cement Pastes, Sheffield, England (Cement & Concrete Association, UK), 283 (1976).Google Scholar
3. Stewart, H.R. and Bailey, J.E., J.Mater.Sci. 18, 3686 (1983).10.1007/BF00540741CrossRefGoogle Scholar
4. Eden, N.B. and Bailey, J.E., J.Mater.Sci. 19, 2677 (1984).CrossRefGoogle Scholar
5. Vekey, R.C. de and Majumdar, A.J., Mag.Concr.Res. 20, 229 (1968).Google Scholar
6. Alford, N.McN., Birchall, J.D., Howard, A.J. and Kendall, K., Comments on Reference 4, to be published in J.Mater.Sci.Google Scholar
7. Griffith, A.A., Phil.Trans.R.Soc.Lond., A221, 163 (1920).Google Scholar
8. Dugdale, D.S., J.Mech.Phys. Solids 8, 100 (1960).10.1016/0022-5096(60)90013-2CrossRefGoogle Scholar
9. Lawn, B.R. and Wilshaw, T.R., “Fracture of Brittle Solids” (Cambridge University Press, Cambridge, England), 1975.Google Scholar
10. Bazant, Z.P. and Raftchol, W.J.R., Cem.Concr.Res. 12, 209 (1982).10.1016/0008-8846(82)90008-4Google Scholar
11. Alexander, K.M., Nature 183, 885 (1959).10.1038/183885a0Google Scholar
12. Taplin, J.H., Austral.J.Appl.Sci. 10, 329 (1959).Google Scholar
13. Birchall, J.D., Howard, A.J. and Kendall, K., Nature, 292, 89 (1981).Google Scholar
14. Eden, N.B. and Bailey, J.E., J.Mater.Sci. 19, 150 (1984).10.1007/BF02403121CrossRefGoogle Scholar