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Title:
保水機能を有するコンクリート舗装及びコンクリートブロック
Document Type and Number:
Japanese Patent JP4138398
Kind Code:
B2
Abstract:

To provide a concrete paving material lowering the temperature of a pavement and having a water-retention function at a low cost and a concrete block and to provide placing sand having the water-retention function and a hydraulic function instead of natural sand used for the placing sand aiming at flatness of a concrete block and stability.

A concrete pavement having a method of preventing the temperature rising of the pavement is so constituted that aggregate having a large number of micropore spaces with porosity and strength is mixed with a proper amount of a water granulated blast-furnace soft slag having characteristic with high water permeability and an air-cooled blast-furnace slag to add a vermiculite with high water retentivity thereto. Cement and polymer emulsion resin as a binder are added to the aggregate, and a cellulose ether is added in order to increase water retentivity necessary for hydration reaction of the cement and, at the same time, the concrete paving material and the concrete block are so processed that both of them have 5 to 20% of void content.

COPYRIGHT: (C)2004,JPO


Inventors:
Akira Takahashi
Application Number:
JP2002240366A
Publication Date:
August 27, 2008
Filing Date:
August 21, 2002
Export Citation:
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Assignee:
Akira Takahashi
International Classes:
E01C7/14; C04B28/04; E01C5/06; E01C11/24
Domestic Patent References:
JP9208290A
JP7172895A
JP9165707A
JP200148603A
JP2204504A
JP609186B2
JP1149556A
JP1029844A
JP200054305A
JP2002180410A
JP2003119065A
JP2002138406A
JP200419406A
Attorney, Agent or Firm:
Tadashi Aihara