150. SCC - A technical breakthrough and a success for the Danish concrete industry

Title: 150. SCC - A technical breakthrough and a success for the Danish concrete industry
Author(s): C.V. Nielsen, M. Glavind, L. Gredsted, C.N. Hansen
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: 993 - 999
Total Pages: 7
Nb references: 3
Language: English

Abstract: Denmark has not been one of the pioneers of SCC. However, currently Denmark is the country in Europe with the highest application share of SCC being approximately 30 % of all ready-mix concrete is SCC. One reason for this situation is the huge effort carried out in the Danish SCC-Consortium since 2003. The SCC-Consortium focuses on material development, on execution of SCC structures and on the production of SCC. Furthermore, a large investigation into the effects of SCC on the working environment and the productivity is being carried out. The article presents the SCC-Consortium and some of its overall results.
One of the highlights is the construction of a Danish highway bridge, applying the newest SCC technologies. This activity has provided the Consortium members with valuable experience regarding SCC for civil engineering applications. Furthermore, it has given the building owner a chance to evaluate the benefits of SCC at close range.
The main challenges associated with the casting of a SCC bridge has been the formulation of a SCC mix design, which at the same time meet the building owners specifications and gives the contractor sufficient time to cast and cure the concrete without the need for vibration.
Through trial castings it has been demonstrated how the execution is carried out in order to obtain sloped surfaces on the bridge deck. It is also documented that high performance SCC for civil structures has no problems fulfilling the durability criteria with respect to air void structure and frost/thaw resistance.

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