Title:
WATERPROOF SHEET AND WATERPROOF PROCESSING METHOD
Document Type and Number:
Japanese Patent JP2002167960
Kind Code:
A
Abstract:
To provide a waterproof sheet for smoothly draining the redundant water when concrete is placed and the water leakage infiltrating from the outside.
A polypropylene resin sheet is thermoformed to form a plurality of projections 2b on a sheet surface, a water-permeable nonwoven fabric 3 is stuck to its face, and the space between the sheet and the nonwoven fabric is used as a drain path 4 in this waterproof sheet 2. Since the sheet containing an inorganic filler is used and the projections are formed into truncated cones, deformation and damage can be prevented when concrete is placed, and a waterproof construction method for an outer wall having a good drainage function is available.
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Inventors:
KAWACHI KOICHI
YOSHIMURA HIDETOSHI
YOSHIMURA HIDETOSHI
Application Number:
JP2000370014A
Publication Date:
June 11, 2002
Filing Date:
December 05, 2000
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KK
International Classes:
E02D29/00; B32B27/10; B32B27/32; E02D31/02; E04F13/08; E04G9/10; (IPC1-7): E04G9/10; B32B27/10; B32B27/32; E02D29/00; E02D31/02; E04F13/08