Patents Assigned to Nichireki Chemical Industry Co., Ltd.
  • Patent number: 4266885
    Abstract: The present invention relates to a method of constructing a continuous cut-off wall and a core of a fill-type dam in the ground by placing or grouting at a normal temperature a mixture of a cold-setting property comprising a cement, coarse and fine aggregates and a bituminous emulsion in a certain range of composition (hereinafter referred to as a cement bitumen concrete or a CA concrete), or a mixture of a cold-setting property comprising a cement, fine aggregate and a bituminous emulsion in a certain range of composition (hereinafter referred to as a cement bitumen mortar or a CA mortar) and further constructing an extended core of a fill-type dam above the continuous cut-off wall.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: May 12, 1981
    Assignees: Ohbayashi-Gumi Ltd., Nichireki Chemical Industry Co., Ltd.
    Inventors: Kazuaki Naito, Takaiki Tetekawa, Shigeyuki Sogo, Kazuhiko Higaki, Tetu Yasuoka, Hidetoshi Hosoi