发明名称 |
METHOD OF SUPPLYING ELECTRIC CURRENT TO PRESTRESSED CONCRETE |
摘要 |
A method of electrochemical treatment of prestressed concrete which comprises supplying a direct current between a steel embedded in the prestressed concrete as a cathode and an anode on the surface or inside of the concrete at a voltage higher than the hydrogen evolution potential, wherein an effective tensile force acting on the PC steel tendon embedded in the concrete is not greater than 80% of the tensile strength of the PC steel tendon, and a method of electrochemical treatment of prestressed concrete which comprises supplying a direct current between a steel tendon embedded in the prestressed concrete as a cathode and an anode on the surface or inside of the concrete at a voltage higher than the hydrogen evolution potential, wherein the voltage is adjusted to less than the hydrogen evolution potential at least once during electrochemical treatment, and then electrochemical treatment is resumed at a voltage not lower than the hydrogen evolution potential. |
申请公布号 |
EP1111159(A4) |
申请公布日期 |
2004.08.18 |
申请号 |
EP19980953077 |
申请日期 |
1998.11.17 |
申请人 |
DENKI KAGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
ASHIDA, MASANOBU;ISHIBASHI, KOUICHI |
分类号 |
C04B41/00;C04B41/53;C23F13/04 |
主分类号 |
C04B41/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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