The influence of wood aqueous extractives on the hydration kinetics of plaster

Abstract : The influence of wood aqueous extractives on the hydration of plaster is discussed in this paper. Two species were chosen: poplar and forest pine, and the effect of a thermal treatment, which acts as a dimensional stabiliser for wood, was considered. Calorimetric measurements prove that delays of the setting must be expected, especially for the retified poplar. Conductimetric experiments show that wood extractives seem to act as a retardant of the nucleation phase of the hydration reaction. The chemical analysis of the extracts reveals the presence of acetic acid and phenolic molecules, but other experiments prove that their action is not sufficient to explain the retarding effect. Special attention should be given to the influence of polyphenolic substances known as tannins.
Type de document :
Article dans une revue
Cement and Concrete Research, Elsevier, 2005, 35 (11), pp.2081-2086. 〈10.1016/j.cemconres.2004.05.052〉
Liste complète des métadonnées

Littérature citée [14 références]  Voir  Masquer  Télécharger

https://hal-emse.ccsd.cnrs.fr/emse-00449698
Contributeur : Andrée-Aimée Toucas <>
Soumis le : dimanche 19 septembre 2010 - 17:08:02
Dernière modification le : jeudi 11 janvier 2018 - 06:21:23
Document(s) archivé(s) le : mercredi 30 novembre 2016 - 11:29:31

Fichier

PB-CCR-5-11-original.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Pascal Boustingorry, Philippe Grosseau, René Guyonnet, Bernard Guilhot. The influence of wood aqueous extractives on the hydration kinetics of plaster. Cement and Concrete Research, Elsevier, 2005, 35 (11), pp.2081-2086. 〈10.1016/j.cemconres.2004.05.052〉. 〈emse-00449698〉

Partager

Métriques

Consultations de la notice

155

Téléchargements de fichiers

187