发明授权
- 专利标题： Corrosion-inhibiting method for steel materials in concrete
- 专利标题（中）： 混凝土中钢材的腐蚀抑制方法
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申请号： US214004申请日： 1980-11-02
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公开(公告)号： US4365999A公开(公告)日： 1982-12-28
- 发明人: Toshio Fujita , Toru Kashima
- 申请人： Toshio Fujita , Toru Kashima
- 申请人地址： JPX Osaka JPX Osaka
- 专利权人： Kiresuto Kagaku Kabushiki Kaisha,Osaka Semento Kabushiki Kaisha
- 当前专利权人： Kiresuto Kagaku Kabushiki Kaisha,Osaka Semento Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka JPX Osaka
- 主分类号： C04B28/02
- IPC分类号： C04B28/02 ; C04B7/35
摘要：
A corrosion-inhibiting method for protecting steel materials in concrete or mortar, characterized in that a nitrite, a compound of general formula NH(R)CH.sub.2 COOH (wherein R represents a H atom or an alkyl group having 1 to 4 carbon atoms) or salts thereof, and a hydrazine hydrate are incorporated into the concrete or mortar is provided. The corrosion-inhibiting method is particularly available for construction of steel reinforced concrete structures in which chloride-containing sea sand is used as aggregates and does not affect a property of the concrete or mortar.