| 摘要 |
PROBLEM TO BE SOLVED: To form a waterproof layer on a wall surface excellently by surely depositing a material used for a spray method on the vertically provided wall surface. SOLUTION: In the formation of the waterproof layer on the inside surface of a waterproof wall 2 to be worked, a net member 4 is placed along the inside surface of the waterproof wall 2. After that, a bentonite base material added to water is sprayed with compressed air. As a liquid to be added to the bentonite based material, interlayer cation-containing water can be used in place of water. COPYRIGHT: (C)2007,JPO&INPIT
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