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Effect of water and other dielectrics on subcritical crack growth in portland cement paste

✍ Scribed by J.J. Beaudoin

Publisher: Elsevier Science
Year: 1985
Tongue: English
Weight: 302 KB
Volume: 15
Category: Article
ISSN: 0008-8846
DOI: 10.1016/0008-8846(85)90089-4

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✦ Synopsis

In studying the effect of water and a series of aliphatic alcohols on subcritical crack growth in cement paste, log crack velocity-stress intensity factor curves were obtained by means of a double-torsion technique.

The relative position of the curves was found to be dependent on the dielectric constant of the test media.

Flexural strength of cement paste saturated in organic fluids is also dependent on the dielectric constant.

Stress corrosion processes involving chemical attack of Si-O bonds in cement paste appear to be operative.

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