ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,976, issued on Aug. 11, was assigned to NV BEKAERT SA (Zwevegem, Belgium) and CCL STRESSING INTERNATIONAL LTD (Leeds, Great Britain).
"Post-tensioned concrete with fibers for slabs on supports" was invented by Hendrik Thooft (Welden, Belgium) and Carol Hayek (Leeds, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A concrete slab resting on at least two supports, the concrete slab comprising conventional concrete and a combined reinforcement of both draped 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 e...