A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT BASED SOLIDIFICATION MATERIAL, PRODUCTION METHOD, AND SOLIDIFICATION PROCESSING METHOD USING THE CEMENT BASED SOLIDIFICATION METHOD
To provide a cement based solidification material exhibiting sufficient intensity by solidifying organic soft ground, and ash-based foundation, and suppressing elution of heavy metal or the like from the solidified foundation.SOLUTION: A cement based solidification material comprises: high early strength portland cement; gypsum powder; thiosulfate; and blast furnace slag powder satisfying any of Grade 80, Grade 100 and Grade 120 in ASTM C989 standard. A blended ratio of the high early strength portland cement is 40 mass% or more and 85 mass% or less. A blended ratio of the gypsum powder is 2 mass% or more and 10 mass% or less, in terms of SO3. A blended ratio of the thiosulfate is 0.15 mass% or more and 12 mass% or less. A blended ratio of the blast furnace slag powder is 5 mass% or more and 60 mass% or less.SELECTED DRAWING: None
【課題】有機質軟弱地盤や火山灰性地盤を固化させて十分な強度を発現させることができ且つ固化後の該地盤からの重金属等の溶出を抑制すること。【解決手段】セメント系固化材は、早強ポルトランドセメントと、石膏粉末と、チオ硫酸塩と、ＡＳＴＭ Ｃ９８９規格のＧｒａｄｅ８０、Ｇｒａｄｅ１００及びＧｒａｄｅ１２０のいずれかを満足する高炉スラグ粉末と、を含む。前記早強ポルトランドセメントの配合割合が４０質量％以上８５質量％以下である。前記石膏粉末の配合割合がＳＯ３換算で２質量％以上１０質量％以下である。前記チオ硫酸塩の配合割合が０．１５質量％以上１２質量％以下である。前記高炉スラグ粉末の配合割合が５質量％以上６０質量％以下である。【選択図】なし
CEMENT BASED SOLIDIFICATION MATERIAL, PRODUCTION METHOD, AND SOLIDIFICATION PROCESSING METHOD USING THE CEMENT BASED SOLIDIFICATION METHOD
To provide a cement based solidification material exhibiting sufficient intensity by solidifying organic soft ground, and ash-based foundation, and suppressing elution of heavy metal or the like from the solidified foundation.SOLUTION: A cement based solidification material comprises: high early strength portland cement; gypsum powder; thiosulfate; and blast furnace slag powder satisfying any of Grade 80, Grade 100 and Grade 120 in ASTM C989 standard. A blended ratio of the high early strength portland cement is 40 mass% or more and 85 mass% or less. A blended ratio of the gypsum powder is 2 mass% or more and 10 mass% or less, in terms of SO3. A blended ratio of the thiosulfate is 0.15 mass% or more and 12 mass% or less. A blended ratio of the blast furnace slag powder is 5 mass% or more and 60 mass% or less.SELECTED DRAWING: None
【課題】有機質軟弱地盤や火山灰性地盤を固化させて十分な強度を発現させることができ且つ固化後の該地盤からの重金属等の溶出を抑制すること。【解決手段】セメント系固化材は、早強ポルトランドセメントと、石膏粉末と、チオ硫酸塩と、ＡＳＴＭ Ｃ９８９規格のＧｒａｄｅ８０、Ｇｒａｄｅ１００及びＧｒａｄｅ１２０のいずれかを満足する高炉スラグ粉末と、を含む。前記早強ポルトランドセメントの配合割合が４０質量％以上８５質量％以下である。前記石膏粉末の配合割合がＳＯ３換算で２質量％以上１０質量％以下である。前記チオ硫酸塩の配合割合が０．１５質量％以上１２質量％以下である。前記高炉スラグ粉末の配合割合が５質量％以上６０質量％以下である。【選択図】なし
CEMENT BASED SOLIDIFICATION MATERIAL, PRODUCTION METHOD, AND SOLIDIFICATION PROCESSING METHOD USING THE CEMENT BASED SOLIDIFICATION METHOD
セメント系固化材及びその製造方法、並びに該セメント系固化材を用いた土壌の固化処理方法
DOI KOTA (author) / KIYOTA MASATO (author)
2024-10-10
Patent
Electronic Resource
Japanese
| European Patent Office | 2021