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A platform for research: civil engineering, architecture and urbanism
WATER POLLUTION PREVENTION METHOD
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
【課題】水中地盤に堆積する汚染物質物の拡散を防止し、更に汚染物質を当該水域から除去することができる水質汚染防止方法を提供すること。【解決手段】水中充填材１を汚染水域Ｗに投入して硬化膜１０を、汚染水域Ｗ内の水中地盤Ｌ上に形成する工程を含んでなり、水中充填材１は、石灰石粉１００質量部に対し、固化材が４．０質量部以上２０．０質量部以下の割合で配合されていて、減水剤が、前記水中充填材１ｍ３当り０．１ｋｇ以上２．０ｋｇ以下の割合で配合されていて、増粘剤が、前記水中充填材１ｍ３当り３ｋｇ以上１０ｋｇ以下の割合で配合されていて、湿潤密度が１．８Ｍｇ／ｍ３以上であり、シリンダ式フロー値が２５０ｍｍ以上となるように水を加えられた混練物であって、前記硬化膜１０は、材齢１日における一軸圧縮強度が、０．０１Ｎ／ｍｍ２以上０．５Ｎ／ｍｍ２以下である水質汚染防止方法とする。【選択図】図１
WATER POLLUTION PREVENTION METHOD
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
【課題】水中地盤に堆積する汚染物質物の拡散を防止し、更に汚染物質を当該水域から除去することができる水質汚染防止方法を提供すること。【解決手段】水中充填材１を汚染水域Ｗに投入して硬化膜１０を、汚染水域Ｗ内の水中地盤Ｌ上に形成する工程を含んでなり、水中充填材１は、石灰石粉１００質量部に対し、固化材が４．０質量部以上２０．０質量部以下の割合で配合されていて、減水剤が、前記水中充填材１ｍ３当り０．１ｋｇ以上２．０ｋｇ以下の割合で配合されていて、増粘剤が、前記水中充填材１ｍ３当り３ｋｇ以上１０ｋｇ以下の割合で配合されていて、湿潤密度が１．８Ｍｇ／ｍ３以上であり、シリンダ式フロー値が２５０ｍｍ以上となるように水を加えられた混練物であって、前記硬化膜１０は、材齢１日における一軸圧縮強度が、０．０１Ｎ／ｍｍ２以上０．５Ｎ／ｍｍ２以下である水質汚染防止方法とする。【選択図】図１
WATER POLLUTION PREVENTION METHOD
水質汚染防止方法
ONUKI TOSHIHIKO (author) / ONITSUKA SHUNICHI (author) / FURUKAWAZONO TAKERO (author) / FUJISAKI KATSUTOSHI (author) / KOSHIKAWA YOSHIISA (author) / YOSHIDA TERU (author) / UDAKA YASUSHI (author) / SAKAMOTO JUNICHI (author)
2018-04-26
Patent
Electronic Resource
Japanese
IPC:
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
/
C04B
Kalk
,
LIME
/
G21F
Schutz gegen Röntgenstrahlung, Gammastrahlung, Korpuskularstrahlung oder Teilchenbeschuss
,
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
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