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ASH GRANULATED SOLIDIFIED BODY
PROBLEM TO BE SOLVED: To provide an ash granulated solidified body being excellent in strength after compaction, sufficiently suppressing the elution of a harmful component and being lightweight when used as a soil material.SOLUTION: A problem is solved by an ash granulated solidified body: which is obtained by being kneaded with paper sludge incineration ash, coal ash, ferrous sulfate as a reducer, at least one kind selected from polyferric sulfate and aluminum sulfate as a coagulant, and water, the paper sludge incineration ash having a CaO content measured by a measuring method regulated by JIS M 8221:1997 of 21 mass% or higher; which has at least one peak in a particle size distribution curve, and has a half width of the maximum peak of 2.0 mm or more and 6.0 mm or less; and which has an average particle diameter of 1.8 mm or more and 6.0 mm or less.SELECTED DRAWING: None
【課題】土質材料として使用した場合に、締め固め後の強度に優れ、有害成分の溶出が十分に抑制され、軽量である灰造粒固化体を提供することである。【解決手段】JIS M 8221:1997に規定された測定方法により求められるCaO含有量が21質量%以上であるペーパースラッジ焼却灰、石炭灰、還元剤として硫酸第一鉄、凝集剤としてポリ硫酸第二鉄および硫酸アルミニウムから選択される少なくとも1種、並びに水を混練して得られ、粒度分布曲線において少なくとも1つのピークを有し且つ最大ピークの半値幅が2.0mm以上6.0mm以下であり、平均粒子径が1.8mm以上6.0mm以下である灰造粒固化体によって達成される。【選択図】なし
ASH GRANULATED SOLIDIFIED BODY
PROBLEM TO BE SOLVED: To provide an ash granulated solidified body being excellent in strength after compaction, sufficiently suppressing the elution of a harmful component and being lightweight when used as a soil material.SOLUTION: A problem is solved by an ash granulated solidified body: which is obtained by being kneaded with paper sludge incineration ash, coal ash, ferrous sulfate as a reducer, at least one kind selected from polyferric sulfate and aluminum sulfate as a coagulant, and water, the paper sludge incineration ash having a CaO content measured by a measuring method regulated by JIS M 8221:1997 of 21 mass% or higher; which has at least one peak in a particle size distribution curve, and has a half width of the maximum peak of 2.0 mm or more and 6.0 mm or less; and which has an average particle diameter of 1.8 mm or more and 6.0 mm or less.SELECTED DRAWING: None
【課題】土質材料として使用した場合に、締め固め後の強度に優れ、有害成分の溶出が十分に抑制され、軽量である灰造粒固化体を提供することである。【解決手段】JIS M 8221:1997に規定された測定方法により求められるCaO含有量が21質量%以上であるペーパースラッジ焼却灰、石炭灰、還元剤として硫酸第一鉄、凝集剤としてポリ硫酸第二鉄および硫酸アルミニウムから選択される少なくとも1種、並びに水を混練して得られ、粒度分布曲線において少なくとも1つのピークを有し且つ最大ピークの半値幅が2.0mm以上6.0mm以下であり、平均粒子径が1.8mm以上6.0mm以下である灰造粒固化体によって達成される。【選択図】なし
ASH GRANULATED SOLIDIFIED BODY
灰造粒固化体
TAKADA HIDEKI (Autor:in) / KITAOKA TOSHIHITO (Autor:in)
06.10.2016
Patent
Elektronische Ressource
Japanisch
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