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Microstructural Aspects of Stress Corrosion of Cementitious Materials

Published online by Cambridge University Press:  25 February 2011

U. Schneider ,
E. Nagele  and
N. Dujardin
U. Schneider
Affiliation:
Department of Civil Engineering, University of Kassel, Mönchebergstr. 7, D-3500 Kassel, F.R.G.
E. Nagele
Affiliation:
Department of Civil Engineering, University of Kassel, Mönchebergstr. 7, D-3500 Kassel, F.R.G.
N. Dujardin
Affiliation:
Department of Civil Engineering, University of Kassel, Mönchebergstr. 7, D-3500 Kassel, F.R.G.
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Abstract

Stress corrosion phenomena, i.e. significant effects of mechanical stresses on the corrosion resistance of materials, have been reported for a large variety of materials, including metals, oxides and halides. Recently it has been shown [1,2] that cementitious materials are also sensitive to stress corrosion. The time dependent decrease in the flexural strength of chemically stressed concrete and mortar depends significantly on the mechanical stress acting simultaneously with the chemical attack.

For cementitious materials a comprehensive study of the stress corrosion phenomena has been started. In this paper the latest results from the current research program are presented and the interrelations between the microstructure of hardened cement mortar and the strength reduction caused by stress corrosion, are briefly discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 85: Symposium M – Microstructural Development During Hydration of Cement , 1986 , 161
Copyright
Copyright © Materials Research Society 1987

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References

REFERENCES

1. Schneider, U., Nagele, E., Trans. Int. Conf. of Fracture Mechanics of Concrete, Lausanne, Oct. 1 to 3, 1985.Google Scholar
2. Schneider, U., Nagele, E., Dumat, F., Cem. Concr. Res. 16, 535 (1986).CrossRefGoogle Scholar
3. Schneider, U., Nagele, E. and Dujardin, N., DFG-Bericht Az. Schn 239/5–2, Nov. 1986.Google Scholar
4. Smolczyk, H.G., Proc. Int. Symp. Chem. Cem., 5th, 1968.Google Scholar
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6. Wesche, K.H., Baustoffe für tragende Bauteile, Vol. II, Bauverlag Wiesbaden, FRG, 1981, 2. Aufl.Google Scholar
7. Nagele, E., Hillemeier, B., Hilsdorf, H.K., Betonwerk + Fertigteil + Tech. 50 (1984), 742.Google Scholar