WATER CUT-OFF MATERIAL FOR UNDERGROUND STRUCTURE OUTER WALL

Title:

WATER CUT-OFF MATERIAL FOR UNDERGROUND STRUCTURE OUTER WALL

Document Type and Number:

Japanese Patent JP2006037440

Kind Code:

A

Abstract:

To provide a water cut-off material for an underground structure outer wall having high the reliability of a water cut-off effect, and also having self-repair performance by providing sufficient strength endurable against the construction by a pre-performing construction method, improving workability, eliminating reduction in water cut-off performance by pre-water absorption, and integrating a water swelling agent layer even in a joining part.

This water cut-off material for an underground structure has a stacked structure. In the water cut-off material for the underground structure, water swelling agent layers having stickiness and water absorbing swelling performance are formed on both sides of an impervious sheet by arranging the impervious sheet as an inner layer.

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Inventors:

NAKAMURA TAKESHI
KARATSU TOSHIAKI

Application Number:

JP2004217061A

Publication Date:

February 09, 2006

Filing Date:

July 26, 2004

Export Citation:

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Assignee:

KUNIMINE IND CO LTD

International Classes:

E02D31/02; E04B1/684

Domestic Patent References:

JPH0399028U	1991-10-16
JPH10338812A	1998-12-22
JPH06340017A	1994-12-13
JPH08165642A	1996-06-25
JP2003118023A	2003-04-23
JPH03132508A	1991-06-05
JPH1136352A	1999-02-09

Attorney, Agent or Firm:

Toshizo Iida
Kashiwagi Yuzo
Wataru Sasaki

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