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Title:
WATER-RETAINABLE BLOCK AND ITS PRODUCTION METHOD
Document Type and Number:
Japanese Patent JP2007145669
Kind Code:
A
Abstract:

To provide a water-retainable block having both of excellent water percolation properties and water retainability, and further having high pumping performance, and to provide its production method.

The concrete block comprises a water-retaining material composed of porous particulates, and has a water-retaining content of ≥0.15 g/cm3, a sucking height of ≥70% and the coefficient of water permeability of ≥0.01 cm/sec. Preferably, the water-retaining material is composed of porous particulates with the average particle diameter of 0.15 to 1.2 mm composed of papermaking sludge incineration ash, and the water-retaining block comprises the water-retaining material of 37.5 to 87.5 pts.mass to 100 pts.mass of cement.


Inventors:
KUROIWA YOSHIHITO
MURATA KOZO
TATEYASHIKI HISASHI
YASUDA MASAKAZU
SASAKI MASAMI
Application Number:
JP2005344498A
Publication Date:
June 14, 2007
Filing Date:
November 29, 2005
Export Citation:
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Assignee:
MITSUBISHI MATERIALS CORP
TOKYO HOSO KOGYO
International Classes:
C04B38/00; B28B1/08; C04B14/06; C04B18/10; C04B20/00; C04B28/02; C04B38/08; E01C5/06; E01C11/24
Domestic Patent References:
JP2003252673A2003-09-10
JP2005048403A2005-02-24
JP2003313809A2003-11-06
JP2001151580A2001-06-05
JPH04193784A1992-07-13
Attorney, Agent or Firm:
Hiroshi Chiba