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Title:
METHOD FOR MANUFACTURING GRANULAR IMPROVED SOIL AND GRANULAR IMPROVED SOIL
Document Type and Number:
Japanese Patent JP2010207784
Kind Code:
A
Abstract:

To provide granular improved soil with properties equivalent to those of grit soil, with respect to a method for manufacturing the granular improved soil and the granular improved soil.

The method for manufacturing the granular improved soil 10 first throws construction generation soil 14 and calcined lime 17 from a silo 16 for limestone into a water content adjustment device 12 to adjust the water content of the construction generation soil 14. The water content is adjusted in the range of more than 20% and less than 35%. Next, in a cement addition step 42, the predetermined amount of cement 22 is added from a silo for cement to the construction generation soil 14 adjusted with the water content in step of conveying by a belt conveyor 18. Next, in a mixing step 44, the construction generation soil 14 is crushed and mixed with cement 22. The mixing step 44 is carried out using crushing-mixing device 24 in which the construction generation soil 14 is thrown from the top to a rotated chain 28 and crashed slab 30 to cause it to collide with the chain 28 and the crashed slab 30 at a lower stage in turn to crush it. Simultaneously, it is mixed with cement. Finally, in a curing step 46, the crushed and mixed granular improved soil 34 is conveyed to a curing place by the belt conveyor 32, and cured for 1 to 7 days.

COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
IWAMOTO HIROSHI
YAMAKAWA SHOJI
IWAMOTO KEI
MORI KEIICHI
SAITO SATOSHI
KOJIMA HEIZO
KON NOBUAKI
Application Number:
JP2009059968A
Publication Date:
September 24, 2010
Filing Date:
March 12, 2009
Export Citation:
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Assignee:
TAKENAKA KOMUTEN CO LTD
TAKENAKA DOBOKU CO LTD
International Classes:
C02F11/00; C09K17/10; E02F7/00
Domestic Patent References:
JPH07265837A
JP2001140282A
JPH11315553A
JP2004008904A
JPH09141297A
JPH10263424A
JPH06246178A
Attorney, Agent or Firm:
中島 淳
加藤 和詳