Dilation of portland cement grains during early hydration and the effect of applied hydrostatic pressure on hydration

✍ Scribed by A.A. Rahman; D.D. Double

• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 475 KB
• Volume: 12
• Category: Article
• ISSN: 0008-8846
• DOI: 10.1016/0008-8846(82)90096-5

✦ Synopsis

An optical interference method shows that at early stages of hydration there is a significant increase in size of individual cement grains. The effect of applied hydrostatic pressure on cement pastes is an increase in the degree of hydration. Explanations for these effects are given in terms of the osmotic gel membrane model of hydration.

Une mdthode d'interf~rences optiques montre qu'il y a un accroissement signifiant de la taille des grains de clment 1ors des premieres ~tapes de l'hydratation.

L'effet d'une pression hydrostatique appliqu~e sur les pates de ciment consiste en une augmentation du degr~ d'hydratation.

On donne ici une interpretation de ces effets au moyen du module d'hydratation membrane osmotique.