Post-tensioned expanding concrete with fibers for slabs
AssigneesNV Bekaert SA, Ccl Stressing International Ltd
InventorsHendrik THOOFT, Carol HAYEK, Gerhard VITT
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Abstract
The present invention concerns a concrete slab, the slab comprising concrete and a combined reinforcement of both post-tension steel strands and fibers, said post-tension steel strands—having a diameter ranging from 5 mm to 20 mm,—having a tensile strength higher than 1700 MPa, said fibers being either steel fibers and being present in a dosage ranging from 10 kg/m3 to 75 kg/m3 or being macro-synthetic fibers and being present in a dosage ranging from 1.5 kg/m3 to 9,0 kg/m3, whereby the concrete is expanding concrete.
Claims15
A concrete slab, the slab comprising concrete and a combined reinforcement of both post-tension steel strands and fibers,
- said post-tension steel strands
- having a diameter ranging from 5 mm to 20 mm,
- having a tensile strength higher than 1700 MPa,
- said fibers being either steel fibers and being present in a dosage ranging from 10 kg/m3 to 75 kg/m3 or being macro-synthetic fibers and being present in a dosage ranging from 1.5 kg/m3 to 9.0 kg/m3,
- whereby the concrete is expanding concrete.
Dependencies are inferred from the claim text.