| HAL : hal-00457932, version 1 |
| Fiche détaillée | Récupérer au format |
|
|
| Journal du CEREM (2009) 16 pages |
|
|
|
|
| Influence of cellulose ether particle size on water retention of freshly-mixed mortars |
|
|
| Laetitia Patural 1, 2, 3Alexandre Govin 1, 2, 3 |
|
|
| CSTB Collaboration(s) |
|
|
| (2009) |
|
|
| Cellulose ethers are polymers frequently introduced into mortar formulations in order to improve water retention capacity and workability of the freshly mixed materials. Cellulose derivatives can induce excellent water retention thanks to the possible superposition of two phenomena. Mortar rheology can impact water retention, increasing media viscosity. Other specific effects provided by cellulose ethers may improve water retention, though this effect remains misunderstood until now. These admixtures may act as a diffusion barrier, preventing water loss, or they can modify the porous network in the fresh state. Physico-chemical parameters of the admixtures (molecular weight, granulometry, etc) seem to have a strong influence on mortar water retention capacity. |
|
|
|
|
|
|
|
|
|
|
| 1 : | Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE) |
| École Nationale Supérieure des Mines - Saint-Étienne | |
| 2 : | Département Poudres et Matériaux Multi-Composants (P2MC-ENSMSE) |
| École Nationale Supérieure des Mines - Saint-Étienne – SPIN | |
| 3 : | Laboratoire des Procédés en Milieux Granulaires (LPMG-EMSE) |
| CNRS : UMR5148 – École Nationale Supérieure des Mines - Saint-Étienne | |
| 4 : | Centre Scientifique et Technique du Bâtiment (CSTB Saint martin d'hères) |
| CSTB | |
|
|
|
|
|
|
|
|
| Domaine | : | Sciences de l'ingénieur/Génie des procédés |
|
|
| cellulose ethers – mortar – particle size – water retention |
|
|
| Liste des fichiers attachés à ce document : | |||||
|
|
|
| hal-00457932, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00457932 | |
| oai:hal.archives-ouvertes.fr:hal-00457932 | |
| Contributeur : Andrée-Aimée Toucas | |
| Soumis le : Jeudi 18 Février 2010, 17:02:33 | |
| Dernière modification le : Jeudi 18 Février 2010, 19:45:13 | |