Title:
CUT-OFF METHOD
Document Type and Number:
Japanese Patent JP3760011
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To securely cut off water leakage not only in a small area of water leakage but also in a widened area, by inserting a porous material connected to the outside face in the inside of bleeding channels in the water leakage part and injecting a hydrophilic polymerization setting type cut-off liquid agent into the porous material to impregnate it therewith.
SOLUTION: A porous material 3 such as urethane foam and steel wool is inserted in cracks 2 forming a water leakage position of a building frame 1 of concrete or the like and a hydrophilic polymerization setting type cut-off liquid agent is injected in the porous material 3 to impregnate it therewith. The porous material which is excellent in both compressive and tensile strengths and extensible and compressible and also excellent in durability and further which is easily impregnated with the hydrophilic cut-off liquid agent, is preferable. A foamed body with a continuous foam structure or a lump of fiber in which relatively rigid fiber are entangled, etc., are used for the porous material. A monomer having a low viscosity and fluidity before its polymerizing and curing in accordance with the polimerizing reaction, a substance that a polymerization catalyst is added into bridge-forming monomer and vinyl monomer together with water, for instance, are used for the cut-off agent.
Inventors:
Seiji Hamada
Kurihara Katsuhiko
Kenji Sawada
Taminichiro
Toshizo Tada
Kurihara Katsuhiko
Kenji Sawada
Taminichiro
Toshizo Tada
Application Number:
JP33878296A
Publication Date:
March 29, 2006
Filing Date:
December 18, 1996
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
E02D31/02; E04G23/02; (IPC1-7): E04G23/02; E02D31/02
Domestic Patent References:
| JP5222845A |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Shigeo Naruse
Takashi Watanabe
Shigeo Naruse