A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HEXAVALENT CHROMIUM IMMOBILIZING AGENT AND GROUND IMPROVEMENT MATERIAL CONTAINING THE SAME
To provide a hexavalent chromium immobilizing agent that is used as a material of a ground improvement material together with a cement-based immobilizing material, which can improve hexavalent chromium immobilizing performance of a ground improved by a slurry containing a ground improvement material, and can impart excellent physical properties with respect to pump pressure-feeding property of the slurry and strength (for example, uniaxial compressive strength) of a ground improved by the slurry.SOLUTION: A hexavalent chromium immobilizing agent contains a calcium-containing compound represented by chemical formula CaSx (provided that x is an integer of 1 or more), and 0.03 to 0.28 pts.mass of SrO with respect to 100 pts.mass of the calcium-containing compound. A ground improvement material contains the hexavalent chromium immobilizing agent, and a cement-based immobilizing material (for example, a material containing cement, gypsum, and blast furnace slag fine powder which is blended as necessary).SELECTED DRAWING: None
【課題】セメント系固化材と共に地盤改良材の材料として用いるための六価クロム固定化剤であって、地盤改良材を含むスラリーによって改良された地盤の六価クロム固定性能を向上させることができ、かつ、該スラリーのポンプ圧送性、及び、該スラリーによって改良された地盤の強度（例えば、一軸圧縮強度）について、優れた物性を与えることのできる六価クロム固定化剤を提供する。【解決手段】化学式がＣａＳｘ（ただし、ｘは１以上の整数である。）であるカルシウム含有化合物、及び、上記カルシウム含有化合物１００質量部に対して０．０３～０．２８質量部の量のＳｒＯを含む六価クロム固定化剤。六価クロム固定化剤、及び、セメント系固化材（例えば、セメント、石膏、及び、必要に応じて配合される高炉スラグ微粉末を含むもの）を含む地盤改良材。【選択図】なし
HEXAVALENT CHROMIUM IMMOBILIZING AGENT AND GROUND IMPROVEMENT MATERIAL CONTAINING THE SAME
To provide a hexavalent chromium immobilizing agent that is used as a material of a ground improvement material together with a cement-based immobilizing material, which can improve hexavalent chromium immobilizing performance of a ground improved by a slurry containing a ground improvement material, and can impart excellent physical properties with respect to pump pressure-feeding property of the slurry and strength (for example, uniaxial compressive strength) of a ground improved by the slurry.SOLUTION: A hexavalent chromium immobilizing agent contains a calcium-containing compound represented by chemical formula CaSx (provided that x is an integer of 1 or more), and 0.03 to 0.28 pts.mass of SrO with respect to 100 pts.mass of the calcium-containing compound. A ground improvement material contains the hexavalent chromium immobilizing agent, and a cement-based immobilizing material (for example, a material containing cement, gypsum, and blast furnace slag fine powder which is blended as necessary).SELECTED DRAWING: None
【課題】セメント系固化材と共に地盤改良材の材料として用いるための六価クロム固定化剤であって、地盤改良材を含むスラリーによって改良された地盤の六価クロム固定性能を向上させることができ、かつ、該スラリーのポンプ圧送性、及び、該スラリーによって改良された地盤の強度（例えば、一軸圧縮強度）について、優れた物性を与えることのできる六価クロム固定化剤を提供する。【解決手段】化学式がＣａＳｘ（ただし、ｘは１以上の整数である。）であるカルシウム含有化合物、及び、上記カルシウム含有化合物１００質量部に対して０．０３～０．２８質量部の量のＳｒＯを含む六価クロム固定化剤。六価クロム固定化剤、及び、セメント系固化材（例えば、セメント、石膏、及び、必要に応じて配合される高炉スラグ微粉末を含むもの）を含む地盤改良材。【選択図】なし
HEXAVALENT CHROMIUM IMMOBILIZING AGENT AND GROUND IMPROVEMENT MATERIAL CONTAINING THE SAME
六価クロム固定化剤及びそれを含む地盤改良材
HASEBE SHO (author) / MORI YOSHIHIKO (author) / NOZAKI TAKAHITO (author) / HAYAKAWA TAKAYUKI (author)
2024-10-09
Patent
Electronic Resource
Japanese
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