发明授权
- 专利标题: Concrete composition for underwater use
- 专利标题(中): 用于水下使用的混凝土组成
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申请号: US725116申请日: 1985-07-26
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公开(公告)号: US4743301A公开(公告)日: 1988-05-10
- 发明人: Koichi Ito , Masaharu Sakuta , Yasuhiko Yoshioka , Tadahiro Kaya , Tsunetoshi Shioya , Hiroyuki Yamakawa , Yoshifumi Shimoyama
- 申请人: Koichi Ito , Masaharu Sakuta , Yasuhiko Yoshioka , Tadahiro Kaya , Tsunetoshi Shioya , Hiroyuki Yamakawa , Yoshifumi Shimoyama
- 申请人地址: JPX Osaka JPX Tokyo JPX Tokyo
- 专利权人: Takenaka Komuten Co., Ltd.,Takenaka Doboku Co., Ltd.,Sankyo Chemical Industries, Ltd.
- 当前专利权人: Takenaka Komuten Co., Ltd.,Takenaka Doboku Co., Ltd.,Sankyo Chemical Industries, Ltd.
- 当前专利权人地址: JPX Osaka JPX Tokyo JPX Tokyo
- 优先权: JPX58-149685 19830818; JPX59-142407 19840711; JPX59-142406 19840711
- 主分类号: C04B24/16
- IPC分类号: C04B24/16
摘要:
A concrete composition for underwater use contains about 0.1 to 4% by weight based on cement content of a water soluble vinyl polymer containing vinyl units having sulfonic groups. The concrete composition is easy to mix and prevents separation of concrete composition constituents as it is laid under water.
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