CAPSULES AS A PREVENTION OF FIBRE CLUSTERS IN CONCRETE

A homogeneous concrete mixture without aggregate pockets and fibre clusters is a prerequisite for reinforced concrete elements or structures. Technological measures are available for achieving homogeneous mixtures without aggregate pockets, but reinforcing fibres are still pre-disposed to form clust...

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Bibliographic Details
Published in:Ceramics (Praha) 2012-01, Vol.56 (4), p.383-388
Main Authors: Pospisil, K, Stryk, J, Matula, R
Format: Article
Language:English
Subjects:
Aggregates
Clusters
Concretes
Fibers
Fibre
Fibre capsule
Fibre cluster
Fibre-reinforced concrete
Fibres
FRC
Pocket
Polypropylenes
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Description
Summary:A homogeneous concrete mixture without aggregate pockets and fibre clusters is a prerequisite for reinforced concrete elements or structures. Technological measures are available for achieving homogeneous mixtures without aggregate pockets, but reinforcing fibres are still pre-disposed to form clusters. A novel, patented method for treating the fibres, based on capsules containing individual rolled fibre which can be admixed into a concrete mixture and homogeneously distributed within the volume, is described. Test results for commercial capsules containing 25 mm-long polypropylene fibres, and concrete mixtures with capsule additions, are presented and discussed.
ISSN:0862-5468
1804-5847