| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 259338 | Construction and Building Materials | 2012 | 5 Pages |
The water absorption of aggregates is a key parameter in concrete mix design. As the adhered mortar of recycled aggregates present a long time of saturation (>24 h). A new approach of water absorption measurement was developed using hydrostatic weighing in order to observe the kinetic absorption of aggregates, and to obtain a necessary water quantity added in different steps in concrete mix. Experimental results indicate that the model of capillarity processes of aggregates can be obtained using Hall’s model. A good correlation was obtained between the current method NF EN 1097-6 and hydrostatic weighing approach. A necessary time for the total saturation of recycled aggregates was evaluated.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The water absorption evolution of aggregates is obtained using hydrostatic weighing. ► This test allows to quantify the kinetic of absorption of recycled aggregates. ► The model of capillarity processes of aggregates can be obtained using Hall’s model. ► A necessary time for the total saturation of recycled aggregates was obtained.
