A conceptual model for predicting the Bingham rheological parameter yield stress of SCC has been established. The model used here is inspired by previous work of Oh et al. (1), predicting that the yield stress of concrete relative to the yield stress of paste is a function of the relative thickness of excess paste around the aggregate. The thickness of excess paste is itself a function of particle shape, particle size distribution, and particle packing. Seven types of SCC were tested at four different excess paste contents in order to verify the conceptual model. Paste composition and aggregate shape and distribution were varied between SCC types. The results indicate that yield stress of SCC may be predicted using the model.
|Title of host publication||Nordic Concrete Research : Proceedings Nordic Concrete Research Meeting|
|Editors||Terje Kanstad, Einar Aassved Hansen|
|Number of pages||384|
|Place of Publication||Oslo, Norway|
|Publication status||Published - 2005|
|Event||19th Symposium on Nordic Concrete Research & Development: A meeting place for research and practice - Sandefjord, Norway|
Duration: 13 Jun 2005 → 15 Jun 2005
|Conference||19th Symposium on Nordic Concrete Research & Development|
|Period||13/06/2005 → 15/06/2005|
Thrane, L. N., Hasholt, M. T., & Pade, C. (2005). Predicting the Yield Stress of SCC using Materials Modelling. In T. Kanstad, & E. A. Hansen (Eds.), Nordic Concrete Research: Proceedings Nordic Concrete Research Meeting (1 ed., pp. 83-85). Norsk Betongforening.