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14. Comparison between different test methods used for evaluation of self-compacting concrete’s stability



Title: 14. Comparison between different test methods used for evaluation of self-compacting concrete’s stability
Author(s): M. Mahoutian, I. Yadegaran, N.A. Libre, M. Shekarchi
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: 103 - 109
Total Pages: 7
Nb references: 6
Language: English


Abstract: SCC is a highly flowable concrete, which is able to fill every corner of the formwork purely under its own weight. Due to high fluidity, the possibility of non-homogeneity and separation of aggregates and paste (also known as segregation) increases. This high potential for segregation and loss of stability must be considered in the mix design of SCC.
Several methods have been proposed for evaluating the fresh characteristics of selfcompacting concretes which are used as indicators of the stability of SCC. Slump Flow, VFunnel, L-Box, U-Box, J-Ring, GTM Screen and Orimet are the most widely used of these methods. Most of these methods are merely qualitative and not completely reliable. These methods have simply remained as guidelines and recommendations and have not been internationally standardized.
In this paper, different methods for evaluating the stability of self-compacting concrete such as the ones mentioned above are studied and compared. Suggestions are made to improve the current methods in order to obtain new and more detailed results on stability and rheological properties of SCC using the same apparatus.


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