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SCC-mortars made of fine aggregates with different particle shapes



Author(s): K. Ostheeren, U. Stark, A. Mueller
Paper category: Symposium
Book title: 3rd International RILEM Symposium on Rheology of Cement Suspensions such as Fresh Concrete
Editor(s): O.H. Wallevik, S. Kubens, S. Oesterheld
ISBN: 978-2-35158-091-2
e-ISBN: 978-2-35158-092-9
Pages: 230 - 236
Total Pages: 7
Language: English


Abstract: 
The development of self compacting concrete and thereby a modified formulation in comparison to ordinary concrete allows the intention of using crushed sands. The application of crushed sands makes it necessary to broaden the understanding of the action of fine aggregates in concrete or mortar. Fine aggregates are characterized by granulometric parameters like particle size and particle shape and the bulk material property packing density.
Fundamental correlations between the properties of fine aggregates, especially the influence of particle size distribution and particle shape on the packing density were investigated.
Furthermore the influence of particle shape and size but also of packing density on workability of self compacting mortars were examined. The workability behaviour was characterized by the rheological parameters yield stress and plastic viscosity as well as the procedures of slump cone and funnel flow time.


Online publication: 2009
Publication Type: full_text
Public price (Euros): 0.00