Title:
水質汚染防止方法
Document Type and Number:
Japanese Patent JP6750817
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a water pollution prevention method which can prevent diffusion of pollution materials deposited on underwater ground and also remove pollutants from water area in question.SOLUTION: The water pollution prevention method comprises the step of charging an underwater load material 1 into a polluted water area W to form a set film 10 on an underwater ground L in the polluted water area W. The underwater load material 1 is a blend comprising a limestone powder and a solidification material, which is formulated at a rate of 4.0 to 20.0 parts by mass of the solidification material based on 100 parts by mass of the limestone powder, and also comprising a water reducing agent formulated at a rate of 0.1 to 2.0 kg per mof the underwater load material, a viscosity improver formulated at a rate of 3 to 10 kg per mof the underwater load material, and water added so that the underwater load material has a wet density of 1.8Mg/mor more and a cylinder flow value of 250 mm or more. The set film 10 has an unconfined compressive strength of 0.01 to 0.5 N/mmat an age of the material of one day.SELECTED DRAWING: Figure 1
Inventors:
Toshihiko Onuki
Shunichi Onitsuka
Takero Furukawaen
Fujisaki victory
Yoshinori Koshikawa
Kosei Yoshida
U High Tai
Junichi Sakamoto
Shunichi Onitsuka
Takero Furukawaen
Fujisaki victory
Yoshinori Koshikawa
Kosei Yoshida
U High Tai
Junichi Sakamoto
Application Number:
JP2016203641A
Publication Date:
September 02, 2020
Filing Date:
October 17, 2016
Export Citation:
Assignee:
Japan Atomic Energy Agency
International Classes:
C02F11/00; C02F1/28; C04B7/345; C04B14/28; C04B24/26; C04B28/02; G21F9/00; G21F9/12; G21F9/30
Domestic Patent References:
| JP54070604A | ||||
| JP2007126838A | ||||
| JP2007247293A | ||||
| JP2002143891A | ||||
| JP63077599A | ||||
| JP2013159898A |
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi
Yuichi Niiyama
Hayashi Ichiyoshi
Yuichi Niiyama