MIXED SOIL FOR CLAY GROUND, AND CLAY GROUND CONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To provide mixed soil for forming a surface layer of clay ground having good water retentivity and water permeability. SOLUTION: The mixed soil is a mixture of fibrous conifer bark obtained by cutting conifer bark, recycled stones obtained by adding cement to construction sludg...

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Bibliographic Details
Main Author OTSU AKIRA
Format Patent
LanguageEnglish
Published 22.09.2005
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE
FIXED CONSTRUCTIONS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
LIME, MAGNESIA
MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
METALLURGY
REFRACTORIES
SLAG
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To provide mixed soil for forming a surface layer of clay ground having good water retentivity and water permeability. SOLUTION: The mixed soil is a mixture of fibrous conifer bark obtained by cutting conifer bark, recycled stones obtained by adding cement to construction sludge such as bentonite and hardening the same, and earth and sand. The mean fiber length of the fibrous conifer bark is preferably set to 20 mm or less. The mean particle size of the recycled stone is preferably set to 6 mm or less, and the mean particle size of earth and sand is preferably set to 5 mm or less. The proportion of the mixed soil satisfies the following relationships. The fibrous conifer bark takes up 20 to 40 mass%, the recycled stones take up 10 to 30 mass%, and the earth and soil take up the remaining portion. To form the clay ground by using the mixed soil, first a substrate layer is formed by laying and leveling recycled rubble having a mean particle size larger than that of the recycled stones, and then the surface layer is formed by laying and leveling the mixed soil on the substrate layer. Thereafter surface finishing may be performed if desired. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040066556