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Composite for building material, and method of manufacturing building material using the same

Foreign code F070001787
File No. F070001787
Posted date Jan 18, 2008
Country United States of America
Application number 31738905
Gazette No. 20060130710
Gazette No. 7147707
Date of filing Dec 22, 2005
Gazette Date Jun 22, 2006
Gazette Date Dec 12, 2006
Priority data
  • P2002-064614 (Mar 11, 2002) JP
  • P2002-250677 (Aug 29, 2002) JP
  • 2003US-10370318 (Feb 19, 2003) US
  • 2005US-11149382 (Jun 9, 2005) US
Title Composite for building material, and method of manufacturing building material using the same
Abstract (US7147707)
To provide a composite for a building material capable of manufacturing a building material that is harmless to living environment and global environment and can be recycled.
The composite for a building material contains diatomaceous earth, waste lumber, and inorganic hardener, or further contains field earth, and, as necessary, contains used paper and/or crushed pieces of used tatami mat and used tile, and crushed earth.
The composite for a building material is prepared by homogeneously mixing the components, and then the building material is manufactured by molding and curing the composite.
The manufactured building material has a high humidity conditioning property as in the case of the conventional mud wall made of coarse clay, and is easily recycled by being crushed.
Moreover, this building material does not cause hypersensitiveness to chemical substances because it produces no chemical substances, and has a feel of earth so that earthen walls and flower beds made by using this building material integrate well with an appearance of ancient city and are in harmony with beautiful appearance of houses properly.
Scope of claims [claim1]
1. A composite for a building material comprising: diatomaceous earth;
waste lumber;
and
inorganic hardener for cement mud wall which is a composition consisting of within the indicated percentage ranges: Portland cement, about 45 to 60 wt %;
an inorganic rapid-curing agent, about 20 to 27 wt %;
an inorganic shrinkage-retarding agent, about 8 to 10 wt %;
an organic pigment, about 10 to 13 wt %;
a powder of silica, about 5 to 7 wt %;
and a surface-active agent, about 0.7 to 0.9 wt %.
[claim2]
2. The composite for a building material according to claim 1, wherein said diatomaceous earth is 10 to 50 percent by weight, based on a total weight of the composite;
said waste lumber is 5 to 30 percent by weight, based on a total weight of the composite and said inorganic hardener for cement mud wall is 10 to 80 percent by weight, based on a total weight of the composite.
[claim3]
3. The composite for a building material according to claim 1, further comprising field earth.
[claim4]
4. The composite for a building material according to claim 3, wherein said field earth is 5 to 40 percent by weight, based on the total weight of the composite.
[claim5]
5. The composite for a building material according to claim 1, wherein said composite further comprises at least one substance selected from the group consisting of;
used paper;
crushed pieces of used tatami mat;
crushed pieces of used tile;
and crushed earth.
[claim6]
6. The composite for a building material according to claim 5, wherein when at least one of said used paper, crushed pieces of used tatami mat;
crushed pieces of used tile;
and said crushed earth is present, the content of said used paper, said crushed pieces of used tatami mat;
said crushed pieces of used tile;
and said crushed earth is 10 to 30 percent by weight, based on the total weight of the composite.
[claim7]
7. The composite of claim 1, wherein said inorganic hardener is a composition consisting of Portland cement, about 48.4 wt %;
an inorganic rapid-curing agent, about 24.2 wt %;
an inorganic shrinkage-retarding agent, about 8.8 wt %;
an organic pigment, about 12 wt %;
a powder of silica about 6 wt %;
and a surface-active agent, about 0.8 wt %.
[claim8]
8. A method of manufacturing a building material, comprising;
homogeneously mixing diatomaceous earth, waste lumber, and water to form a homogeneous mixture;
mixing an inorganic hardener for cement mud wall with said homogeneous mixture, to produce a composite for a building material;molding the composite for a building material;curing the molded composite for a building material, to produce said building material;and wherein said inorganic hardener is a composition consisting of within the indicated percentage ranges: Portland cement, about 45 to 60 wt %;
an inorganic rapid-curing agent, about 20 to 27 wt %;
an inorganic shrinkage-retarding agent, about 8 to 10 wt %;
an inorganic pigment, about 10 to 13 wt %, a powder of silica, about 5 to 7 wt %;
and a surface-active agent, about 0.7 to 0.9 wt %.
[claim9]
9. A method of manufacturing a building material, comprising;
homogeneously mixing diatomaceous earth, waste lumber, field earth, and water, to form a homogeneous mixture;mixing an inorganic hardener for cement mud wall with said homogeneous mixture, to produce a composite for a building material;molding the composite for a building material;curing the molded composite for a building material, to produce said building materialand wherein said inorganic hardener is a composition consisting of within the indicated percentage ranges: Portland cement, about 45 to 60 wt %;
an inorganic rapid-curing agent, about 20 to 27 wt %;
an inorganic shrinkage-retarding agent, about 8 to 10 wt %;
an organic pigment, about 10 to 13 wt %;
a powder of silica, about 5 to 7 wt %;
and a surface-active agent, about 0.7 to 0.9 wt %.
[claim10]
10. The method of manufacturing a building material according to claim 8 or 9, further comprising mixing at least one of;
used paper;
crushed pieces of used tatami mat;
crushed pieces of used tile;
and crushed earth with said homogeneous mixture.
[claim11]
11. The method of manufacturing a building material according to claim 8 or 9, wherein the said molding comprises slip casting of said composite for a building material.
[claim12]
12. The method of manufacturing a building material according to claim 8 or 9, wherein the said molding comprises extrusion molding of said composite for a building material.
  • Inventor, and Inventor/Applicant
  • MURAKAMI HIROSHI
  • SUZUKI YOSHIYUKI
  • GOTOU MASAMI
  • KANAZAWA INSTITUTE OF TECHNOLOGY
IPC(International Patent Classification)
U.S. Cl./(Sub)
  • B28B001/52E
  • C04B028/04
  • M04B111/00E
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