公开(公告)号：US4643929A

公开(公告)日：1987-02-17

申请号：US681773

申请日：1984-12-14

申请人： Kanji Watanabe ,  Mikio Mizoe ,  Eiji Inoo

发明人： Kanji Watanabe ,  Mikio Mizoe ,  Eiji Inoo

IPC分类号： B32B15/08 ,  D07B1/16 ,  E04C5/01 ,  E04C5/08 ,  B32B13/02 ,  E04C3/10 ,  E04C3/34

CPC分类号： D07B1/162 ,  E04C5/08 ,  D07B2201/2044 ,  D07B2201/2045 ,  Y10T428/1321 ,  Y10T428/1328 ,  Y10T428/1338 ,  Y10T428/249968 ,  Y10T428/26 ,  Y10T428/2933 ,  Y10T428/294 ,  Y10T428/2947 ,  Y10T428/31692

摘要： Prestressing steel materials are disclosed for use with concrete that is prestressed by posttensioning, said steel material being unbonded from the concrete. The steel materials are composed of steel members sheathed with a heat-shrinkable synthetic resin tube. Preferably, the wall thickness of the resin tube is at least 300 microns. In the case of a steel strand composed of a plurality of twisted steel wires, spiral grooves of the strand are filled with a resin and then the strand and resin are sheathed with a heat-shrinkable synthetic resin tube.

摘要翻译： 公开了预应力钢材，用于通过后拉伸预应力的混凝土，所述钢材与混凝土是未粘结的。 钢材由具有热收缩性合成树脂管的护套组成。 优选地，树脂管的壁厚至少为300微米。 在由多根扭绞钢丝构成的钢绞线的情况下，用树脂填充线股的螺旋槽，然后用热收缩性合成树脂管包扎线股和树脂。

公开(公告)号：US4849282A

公开(公告)日：1989-07-18

申请号：US61363

申请日：1987-06-15

申请人： Kanji Watanabe ,  Mikio Mizoe

发明人： Kanji Watanabe ,  Mikio Mizoe

IPC分类号： E04C5/08

CPC分类号： E04C5/08 ,  Y10T428/249997 ,  Y10T428/254 ,  Y10T428/263 ,  Y10T428/2913 ,  Y10T428/2927

摘要： An elongated prestressing steel material for use in the fabrication of prestressed concrete comprises a steel member and an outer coat of many microcapsules each containing a flowable material in its interior.

摘要翻译： 用于制造预应力混凝土的细长预应力钢材料包括钢构件和许多微胶囊的外涂层，每个微胶囊在其内部均含有可流动材料。

公开(公告)号：US4661387A

公开(公告)日：1987-04-28

申请号：US681774

申请日：1984-12-14

申请人： Kanji Watanabe ,  Mikio Mizoe

发明人： Kanji Watanabe ,  Mikio Mizoe

IPC分类号： B32B5/18 ,  B32B15/08 ,  D07B1/16 ,  E04C5/01 ,  E04C5/08 ,  E04C5/10

CPC分类号： D07B1/162 ,  E04C5/08 ,  D07B2201/2044 ,  D07B2201/2045 ,  D07B2501/2023 ,  Y10T428/1321 ,  Y10T428/1355 ,  Y10T428/249958 ,  Y10T428/24999 ,  Y10T428/265 ,  Y10T428/2933 ,  Y10T428/294 ,  Y10T428/2947

摘要： A prestressing steel material for use with concrete that is prestressed by posttensioning is disclosed. Said steel material is unbonded from the concrete. The prestressing steel material is composed of a steel member sheathed with a foamed synthetic resin tube. The wall thickness of the synthetic resin tube is at least 300 microns, more preferably, more than 500 microns. In the case that the steel member is a strand composed of a plurality of twisted steel wires, the spiral grooves of the strand are first filled with a resin and the strand together with the resin sheathed with the foamed synthetic resin tube.

摘要翻译： 公开了一种用于通过后拉伸预应力的混凝土使用的预应力钢材。 所述钢材与混凝土无粘结。 预应力钢材由包覆有发泡合成树脂管的钢构件组成。 合成树脂管的壁厚至少为300微米，更优选为大于500微米。 在钢构件是由多根扭绞钢丝构成的线材的情况下，首先将该股线的螺旋槽填充有树脂，将该股线与被发泡的合成树脂管套住的树脂一起填充。