Observations of air-bubbles escaped from fresh cement paste / M. Tyler Ley in Cement and concrete research, Vol. 39 N° 5 (Mai 2009)  

Public ISBD [article]  inCement and concrete research > Vol. 39 N° 5 (Mai 2009) . - pp. 409–416 Titre : Observations of air-bubbles escaped from fresh cement paste Type de document : texte imprimé Auteurs : M. Tyler Ley, Auteur ; Kevin J. Folliard, Auteur ; Kenneth C. Hover, Auteur Année de publication : 2009 Article en page(s) : pp. 409–416 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Freezing and thawing  Admixture Fresh concrete Air entrainment Résumé : Recent experimental work is presented using a new technique to observe bubbles that have escaped from cement pastes and suspended in the bleed water. These experiments suggest that the stability of an air-entrained bubble may be related to the integrity of the hydration shell. This paper also reviews literature dealing with changes to air bubbles with time in fresh air entrained cement paste and concrete and to the existence of a shell surrounding these bubbles. ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science/article/pii/S0008884609000428 [article] Observations of air-bubbles escaped from fresh cement paste [texte imprimé] / M. Tyler Ley, Auteur ; Kevin J. Folliard, Auteur ; Kenneth C. Hover, Auteur . - 2009 . - pp. 409–416. Génie Civil Langues : Anglais (eng) in Cement and concrete research > Vol. 39 N° 5 (Mai 2009) . - pp. 409–416 Mots-clés : Freezing and thawing  Admixture Fresh concrete Air entrainment Résumé : Recent experimental work is presented using a new technique to observe bubbles that have escaped from cement pastes and suspended in the bleed water. These experiments suggest that the stability of an air-entrained bubble may be related to the integrity of the hydration shell. This paper also reviews literature dealing with changes to air bubbles with time in fresh air entrained cement paste and concrete and to the existence of a shell surrounding these bubbles. ISSN : 0008-8846 En ligne : http://www.sciencedirect.com/science/article/pii/S0008884609000428

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