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公开(公告)号：US20200123775A1
公开(公告)日：2020-04-23
申请号：US16617678
申请日：2018-05-28
申请人： NV Bekaert SA
发明人： Dale KING
摘要： A pre-stressed concrete structure comprises a steel wire or a steel strand. The steel wire or steel strand has been pre-tensioned before curing of the concrete or grout. The steel wire or steel strand is provided with a zinc coating. The zinc coating has a weight ranging between 70 g/m2 and 950 g/m2. The steel wire or steel strand has an outer surface that is provided with indentions to provide mechanical anchorage points in the concrete structure. The steel wire or steel strand is further provided with a passivation layer in the form of a metal oxide layer.
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