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Title:
MORTAR AND CONCRETE FOR BUILDING FOUNDATION GROUND MATERIAL
Document Type and Number:
Japanese Patent JP2009018956
Kind Code:
A
Abstract:

To provide a mortar and a concrete which enables a large volume consumption of recycled fine powder as an area of application of liquified soil, brings about an increased recycle ratio of demolished concrete blocks and secures a sufficient strength level for a building foundation ground material.

The concrete for the building foundation ground material is a mixture of (B) recycled fine powder by-produced in producing recycled aggregate from demolished concrete blocks as a raw material, (W) water and (C) cement and, in the case of the cement, (G) coarse aggregate which is obtained by crushing demolished concrete blocks and has a particle size of 40 mm. The amount of the cement compounded is such that the concrete has a uniaxial compressive strength exceeding 1 N/mm2 at the age of 28 days within the ranges of C/W0.5 and C/B0.5 on a mass basis.


Inventors:
YODA KAZUHISA
SHINTANI AKIRA
Application Number:
JP2007000181881
Publication Date:
January 29, 2009
Filing Date:
July 11, 2007
Export Citation:
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Assignee:
KAJIMA CORP
International Classes:
C04B28/02; B09B3/00; C04B18/16; E02F7/00
Domestic Patent References:
JP2007131804A2007-05-31
JP2005320442A2005-11-17
JP2004218336A2004-08-05
JPH09217343A1997-08-19
JP2005256379A2005-09-22
Attorney, Agent or Firm:
Komatsu Takashi
Kenji Wada