发明授权
- 专利标题： Cement-additive for inhibiting concrete-deterioration
- 专利标题（中）： 用于抑制混凝土变质的水泥添加剂
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申请号： US199340申请日： 1994-02-18
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公开(公告)号： US5435846A公开(公告)日： 1995-07-25
- 发明人: Hidenobu Tatematsu , Tohru Nakamura , Hitoshi Koshimizu , Toshihiko Morishita , Hideki Kotaki
- 申请人： Hidenobu Tatematsu , Tohru Nakamura , Hitoshi Koshimizu , Toshihiko Morishita , Hideki Kotaki
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Nippon Chemical Industrial Co., Ltd.,Railway Technical Research Institute
- 当前专利权人： Nippon Chemical Industrial Co., Ltd.,Railway Technical Research Institute
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 主分类号： C04B22/08
- IPC分类号： C04B22/08 ; B01J20/08 ; B01J20/10 ; C01B39/14 ; C01F7/16 ; C04B14/04 ; C04B14/36 ; C04B22/00 ; C04B22/06 ; C04B24/08
摘要：
A cement additive for inhibiting concrete deterioration contains as an effective component a powder mixture of an inorganic cation exchanger, such as a highly calcium-substituted zeolite, and an inorganic anion exchanger, such as hydrocalumite. The cement additive inhibits the alkali-aggregate reaction and the corrosion of reinforcing steel, thereby protecting concrete constructions from deterioration.
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