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Title:
ENGINEERING METHOD OF NEUTRAL SOLIDIFICATION OF MUD AND NOVEL GYPSUM-BASED SOLIDIFICATION IMPROVING MATERIAL
Document Type and Number:
Japanese Patent JP2009285590
Kind Code:
A
Abstract:

To obtain improved soil which is at least fourth treated soil (cone index of 200 kN/m2 or more) and preferably third treated soil (cone index of 400 kN/m2 or more), shows neutral pH, is excellent in vegetation and is suitable for planting soil in an engineering method using grain size adjusted ash together when mud is solidified by a gypsum-based solidification material.

In the engineering method of neutral solidification improvement of mud for subjecting the mud to neutral solidification treatment by the gypsum-based solidification material to obtain improved soil, the engineering method of neutral solidification of mud, in which the gypsum-based solidification material and sludge incineration ash subjected to grain size adjusting treatment are compounded together with the mud, is applied. Further, a novel gypsum-based improving material obtained by compounding the gypsum-based solidification material with the sludge incineration ash subjected to grain size adjusting treatment is used in this engineering method.


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Inventors:
KAWANAMI HIROYUKI
FUJITA IWAHIKO
IRIDE TAKUMI
Application Number:
JP2008141890A
Publication Date:
December 10, 2009
Filing Date:
May 30, 2008
Export Citation:
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Assignee:
TOA GROUT KOGYO CO
FUJIKI KK
TOKYO METRO SEWERAGE SERV CORP
International Classes:
C02F11/00; C09K17/06; E02F7/00
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Attorney, Agent or Firm:
Nobuo Koike



 
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