Title:
木質セメント板及びその製造方法
Document Type and Number:
Japanese Patent JP4412909
Kind Code:
B2
Abstract:
To provide a woody cement board satisfying performances such as crack resistance, thermal stability, and strength required to improve the fire resistance and refractoriness of load-bearing and non-load-bearing wall structures in case of a fire or a spread of fire.
The woody cement board is composed of front and back layers and a core layer comprising cement, a woody reinforcing material, a siliceous material containing shirasu balloon, a flat mineral, and a hydroxide, where shirasu balloon is added at a required ratio and curing in an autoclave is applied to satisfy these performances.
COPYRIGHT: (C)2005,JPO&NCIPI
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Inventors:
Watanabe Isao
Application Number:
JP2003074462A
Publication Date:
February 10, 2010
Filing Date:
March 18, 2003
Export Citation:
Assignee:
Nichiha Corporation
International Classes:
C04B28/18; E04F13/14; B28B3/02; B28B13/02; C04B14/16; C04B14/20; C04B14/36; C04B16/02; C04B18/26; C04B28/02; C04B40/02; C04B111/28
Domestic Patent References:
JP200491230A | ||||
JP6345508A | ||||
JP2001206762A | ||||
JP8198689A | ||||
JP2003267769A |