Though promising, pioneering work has been carried out with rheological characterization and numerical modelling of form filling with SCC, the approach is far from standard in the concrete industry and clearly the approach does not yet hold all the answers to relevant questions. In particular flow induced segregation is a major risk during casting and it is not yet clear how this phenomenon should be modelled. In this paper testing and numerical simulations of full-scale wall castings are compared. Two different SCCs and three different filling methods were applied resulting in different flow patterns during form filling. Results show that the flow patterns have a major influence on the risk of flow induced segregation and the surface finish of the hardened concrete. A hypothesis for the mechanism of flow induced segregation is put forth.
|Title of host publication||Self-Compacting Concrete SCC 2007 : Proceedings of the Fifth International RILEM Symposium|
|Number of pages||1055|
|Place of Publication||France|
|Publisher||RILEM Publication S.A.R.L.|
|Publication status||Published - 2007|
|Event||5th International Symposium on Self-Compacting Concrete - Ghent, Belgium|
Duration: 3 Sep 2007 → 5 Sep 2007
Conference number: 5
|Conference||5th International Symposium on Self-Compacting Concrete|
|Period||03/09/2007 → 05/09/2007|
Thrane, L. N., Stang, H., & Geiker, M. R. (2007). Flow Induced segregation in full scale castings with SCC. In Self-Compacting Concrete SCC 2007: Proceedings of the Fifth International RILEM Symposium (1 ed., Vol. 1, pp. 449-454). France: RILEM Publication S.A.R.L..