Title:
PRODUCTION METHOD OF BACKFILL, BACKFILL AND BACKFILL PRODUCTION SYSTEM
Document Type and Number:
Japanese Patent JP2016014097
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of a backfill which allows construction generation soil of a wide variety of soil properties to be used as raw material soil, a backfill production system and a backfill with construction generation soil of a wide variety of soil properties as raw material soil.SOLUTION: A production method of a backfill includes a foreign matter removal step, a drying step, a mixing step and a moisture ratio adjustment step. The foreign matter removal step comprises removing foreign matter from construction generation soil M1 generated in a construction site. The drying step comprises drying water purification sludge generated by a purification treatment of water taken in from rivers to a moisture ratio of 70% or lower to form purification water soil M2. The mixing step comprises mixing 80% or less of the construction generation soil M1, 20% or less of purification water soil M2 and 5% or less of quick lime together to form mixed soil Mx1. The moisture ratio adjustment step comprises adjusting the moisture ratio of the mixed soil Mx1 to 25% or lower.
Inventors:
YAMASHITA TAKESHI
Application Number:
JP2014136149A
Publication Date:
January 28, 2016
Filing Date:
July 01, 2014
Export Citation:
Assignee:
YAMATATSU KOSAN KK
International Classes:
C09K17/06; B09B3/00; B09B5/00; C02F11/00; C02F11/12; C09K17/02; E02F7/00
Attorney, Agent or Firm:
Hiroyuki Ito