| Titre : | Water absorption in internally cured mortar made with water-filled lightweight aggregate (2009) |
| Auteurs : | Ryan Henkensiefken, Auteur ; Javier Castro, Auteur ; Dale Bentz, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Cement and concrete research (Vol. 39 N° 10, Octobre 2009) |
| Article en page(s) : | pp. 883–892 |
| Note générale : | Génie Civil |
| Langues : | Anglais |
| Index. décimale : | 691 (Matériaux de construction. Pièces et parties composantes) |
| Tags : | Interfacial transition zone ; Internal curing ; Lightweight aggregate ; Sorptivity |
| Résumé : | The increased propensity for shrinkage cracking in low water-to-cement ratio (w/c) concrete has inspired the development of new technologies that can reduce the risk of early-age cracking. One of these is internal curing. Internal curing uses saturated lightweight aggregate to supply ‘curing water’ to low w/c paste as it hydrates. Significant research has been performed to determine the effects of internal curing on shrinkage and stress development; however, relatively little detailed information exists about the effects of internal curing on fluid transport properties such as water absorption or diffusivity. This study examines the absorption of water into mortar specimens made with saturated lightweight aggregates (SLWA). These results indicate that the inclusion of SLWA can reduce the water absorption of mortar specimens. This observation was reinforced with electrical conductivity measurements that exhibited similar reductions. |
| DEWEY : | 620.13 |
| ISSN : | 0008-8846 |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0008884609001392 |
