发明授权
- 专利标题： Hydraulic material composition
- 专利标题（中）： 液压材料组成
-
申请号： US858176申请日： 1986-05-01
-
公开(公告)号： US4705569A公开(公告)日： 1987-11-10
- 发明人: Waichi Kobayashi
- 申请人： Waichi Kobayashi
- 申请人地址： JPX Yamaguchi
- 专利权人： Ube Industries, Ltd.
- 当前专利权人： Ube Industries, Ltd.
- 当前专利权人地址： JPX Yamaguchi
- 优先权： JPX60-95768 19850502
- 主分类号： C04B22/06
- IPC分类号： C04B22/06 ; C04B22/14 ; C04B28/02 ; C04B7/00
摘要：
A hydraulic material composition comprising cement and 0.01 to 2.0% by weight, as zinc oxide based on the cement, of a zinc-containing compound, such as zinc oxide having an average particle diameter of at least 20 micrometers. It does not corrode a steel material even when molded with the use of sand or sea water containing steel-corroding components such as chlorides.