157. A set of European standards for SCC

Title: 157. A set of European standards for SCC
Author(s): F. Cussigh
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 1041 - 1047
Total Pages: 7
Nb references: 2
Language: English

Abstract: Existing European concrete standards like EN 206-1 are not prohibiting the use of SCC, but because some specific properties of SCC were not covered it was necessary to develop a set of new standards dedicated to SCC or to include SCC in updated versions of already published standards. There are three main items: fresh properties test methods, specifications for SCC and execution of concrete structures. Five test methods standards are proposed by TC104/SC1/TG8: Slump-flow, L-Box, Sieve segregation, V-Funnel and J-Ring. Those are based on the outcome of European research project "Testing SCC" and were chosen after long discussions and studies about easiness of use, repeatability, reproducibility and ability to reflect full-scale behaviour. Then, TC104/SC1/TG16 worked on definition of criteria for SCC and technical specifications to be included into EN 206. Following the principles given in SCC European Guidelines published in May 2005, and because there are different types of SCC depending on applications, classes have been defined in terms of fresh properties (flowing ability, passing ability, viscosity and resistance to segregation). In parallel, TC104/SC2 has included SCC in prEN 13-670 dealing with the execution of concrete structures. This means that SCC is now recognized as a concrete family which is only different when observed at fresh state. Regarding SCC hardened properties, comparisons between experimental data and Eurocode 2 prediction laws have been made and support this point. Finally, the set of European standards for SCC will lead to a better definition and control of SCC while keeping the necessary flexibility for possible future evolutions.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00