NEUTRAL HARDENING MATERIAL FOR WATERY SOIL, AND SUPPRESSING METHOD FOR HEAVY METAL ELUTION FROM SOIL AND TREATING METHOD FOR DEHYDRATION OF SOIL USING IT
PROBLEM TO BE SOLVED: To provide such a neutral hardening material used in a hardening treatment by means of a hardening material for a watery soil as is neutral and excellent in a hardened strength and to provide an improved method for hardening a watery soil using this hardening material. SOLUTION...
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| creator | YONEDA OSAMU OKABAYASHI SHIGEO TASAKA YUKIO |
| description | PROBLEM TO BE SOLVED: To provide such a neutral hardening material used in a hardening treatment by means of a hardening material for a watery soil as is neutral and excellent in a hardened strength and to provide an improved method for hardening a watery soil using this hardening material. SOLUTION: The composition comprises 85-99 % by mass of a hydraulic alumina and 1-15 % by mass of lithium carbonate, preferably comprises 65-98 % by mass of a hydraulic alumina, 1-15 % by mass of lithium carbonate and 1-15 % by mass of calcium carbonate, and the composition gives an improved soil with such a high strength in the neutral region as equal to a cement-based hardening material. The method for preventing the elution of heavy metals is characterized by adding and mixing this hardening material of 50-350 kg relative to 1 m3of the object soil. Additionally, the method for dehydrating and hardening a watery soil comprises the steps of adding and mixing the above hardening material of 50-200 kg relative to 1 ton of a dry soil to a highly watery soil with a high water-content of more than 100 % and then dehydrating by means of a dehydrator to thereby give a cake and harden the soil. COPYRIGHT: (C)2005,JPO&NCIPI |
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SOLUTION: The composition comprises 85-99 % by mass of a hydraulic alumina and 1-15 % by mass of lithium carbonate, preferably comprises 65-98 % by mass of a hydraulic alumina, 1-15 % by mass of lithium carbonate and 1-15 % by mass of calcium carbonate, and the composition gives an improved soil with such a high strength in the neutral region as equal to a cement-based hardening material. The method for preventing the elution of heavy metals is characterized by adding and mixing this hardening material of 50-350 kg relative to 1 m3of the object soil. Additionally, the method for dehydrating and hardening a watery soil comprises the steps of adding and mixing the above hardening material of 50-200 kg relative to 1 ton of a dry soil to a highly watery soil with a high water-content of more than 100 % and then dehydrating by means of a dehydrator to thereby give a cake and harden the soil. 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SOLUTION: The composition comprises 85-99 % by mass of a hydraulic alumina and 1-15 % by mass of lithium carbonate, preferably comprises 65-98 % by mass of a hydraulic alumina, 1-15 % by mass of lithium carbonate and 1-15 % by mass of calcium carbonate, and the composition gives an improved soil with such a high strength in the neutral region as equal to a cement-based hardening material. The method for preventing the elution of heavy metals is characterized by adding and mixing this hardening material of 50-350 kg relative to 1 m3of the object soil. Additionally, the method for dehydrating and hardening a watery soil comprises the steps of adding and mixing the above hardening material of 50-200 kg relative to 1 ton of a dry soil to a highly watery soil with a high water-content of more than 100 % and then dehydrating by means of a dehydrator to thereby give a cake and harden the soil. 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SOLUTION: The composition comprises 85-99 % by mass of a hydraulic alumina and 1-15 % by mass of lithium carbonate, preferably comprises 65-98 % by mass of a hydraulic alumina, 1-15 % by mass of lithium carbonate and 1-15 % by mass of calcium carbonate, and the composition gives an improved soil with such a high strength in the neutral region as equal to a cement-based hardening material. The method for preventing the elution of heavy metals is characterized by adding and mixing this hardening material of 50-350 kg relative to 1 m3of the object soil. Additionally, the method for dehydrating and hardening a watery soil comprises the steps of adding and mixing the above hardening material of 50-200 kg relative to 1 ton of a dry soil to a highly watery soil with a high water-content of more than 100 % and then dehydrating by means of a dehydrator to thereby give a cake and harden the soil. 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| subjects | ADHESIVES CHEMISTRY DISPOSAL OF SOLID WASTE DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | NEUTRAL HARDENING MATERIAL FOR WATERY SOIL, AND SUPPRESSING METHOD FOR HEAVY METAL ELUTION FROM SOIL AND TREATING METHOD FOR DEHYDRATION OF SOIL USING IT |
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