Print Email Facebook Twitter Deliberate deformation of concrete after casting Title Deliberate deformation of concrete after casting Author Grünewald, S. Janssen, B. Schipper, H.R. Vollers, K.J. Walraven, J.C. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2012-06-27 Abstract This paper discusses the effect of intentional deformation of a flexible formwork after casting of the concrete and the influence of the characteristics of concrete in the fresh state on the quality of a concrete element. This deformation is intended to bring the concrete element in its desired final shape; the deformation typically takes place in the first hour after casting. In this research thin double-curved precast shell or cladding elements are considered. The paper introduces the method used to support the flexible formwork and focuses on the concrete technology necessary to control the process of deformation after casting. Relevant parameters are discussed that influence the concrete’s behaviour shortly after casting. Rheological characteristics of the fresh concrete appear to be particularly important for the design of a suitable mixture. Since from traditional concrete research little experimental data on deformation after casting appeared to be available, experiments were carried out to test a number of prepositions. Results of these experiments are shown as well. Subject concreteflexible mouldrheologyprecastfreeform To reference this document use: http://resolver.tudelft.nl/uuid:a25870e9-b9d5-423a-a2f4-fc436f2101fb Publisher University of Bath ISBN 9780861971862 Source http://www.icff2012.co.uk/ Source Proceedings of the Second International Conference on Flexible Formwork, University of Bath, UK, 27-28 June 2012 Part of collection Institutional Repository Document type conference paper Rights (c) 2012 Grünewald, S.Janssen, B.Schipper, H.R.Vollers, K.J.Walraven, J.C. Files PDF Grunewald2012.pdf 996.63 KB Close viewer /islandora/object/uuid:a25870e9-b9d5-423a-a2f4-fc436f2101fb/datastream/OBJ/view