Title:
ELECTROMAGNETIC WAVE ABSORBING CONCRETE
Document Type and Number:
Japanese Patent JPH0955595
Kind Code:
A
Abstract:
To enhance the workability and economy by mixing a concrete or mortar of specified mixing ratio and ferrite fly ash and imparting electromagnetic wave absorbing function while utilizing the hard matter to manage fly ash effectively.
A concrete C or mortar of specified mixing ratio is mixed with ferrite fly ash F. For example, a concrete C of specified mixing ratio is added with ferrite fly ash F and mixed by a mixer 1 and the mixture is poured into a planar forms 2 thus forming a wall body of set concrete C. The ferrite fly ash F can be produced easily by mixing fly ash, produced by incinerating city garbage, with iron oxide and then firing at 500-800°C. It has been confirmed that the ferrite fly ash F elutes no detrimental heavy metal.
Inventors:
OBATA KATSURO
KIMURA KOZO
YOSHIDA KATSUO
ICHINOSE KENICHI
HAYASHI YOSHIHIRO
IKEDA MASAHIKO
ENOMOTO JUNYA
KOJIMA AKIRA
KIMURA KOZO
YOSHIDA KATSUO
ICHINOSE KENICHI
HAYASHI YOSHIHIRO
IKEDA MASAHIKO
ENOMOTO JUNYA
KOJIMA AKIRA
Application Number:
JP20798895A
Publication Date:
February 25, 1997
Filing Date:
August 15, 1995
Export Citation:
Assignee:
OHBAYASHI CORP
SHIN MEIWA IND CO LTD
SHIN MEIWA IND CO LTD
International Classes:
C04B14/30; C04B18/08; C04B18/10; C04B28/02; H05K9/00; (IPC1-7): H05K9/00; C04B14/30; C04B18/08; C04B18/10; C04B28/02
Attorney, Agent or Firm:
Matsumoto Masatoshi
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