A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
NEUTRAL SOLIDIFYING MATERIAL AND SOIL TREATMENT METHOD
To provide a neutral solidifying material capable of improving soil to the soil that demonstrates high strength while maintaining an approximately neutral pH.SOLUTION: A neutral solidifying material of the invention includes: magnesium oxide; at least one kind of sulfate selected from aluminum sulfate, ferrous sulfate, and plaster; and a polymer coagulant having an acrylamide unit and a sodium acrylate unit. A composition ratio of the acrylamide unit constituting the polymer coagulant is 55-90 mol%. It is also preferable to include 1-8 mass% of the polymer coagulant. It is also preferable to include 10-50 mass% of magnesium oxide.SELECTED DRAWING: Figure 1
【課題】ｐＨを中性付近に維持しつつ、且つ高い強度を発現した土に改良できる中性固化材を提供すること。【解決手段】本発明の中性固化材は、酸化マグネシウムと、硫酸アルミニウム、硫酸第一鉄及び石膏のうち少なくとも一種の硫酸塩と、アクリルアミドユニットとアクリル酸ナトリウムユニットとを有する高分子凝集剤とからなり、前記高分子凝集剤を構成するアクリルアミドユニットの組成比が５５～９０ｍｏｌ％である。高分子凝集剤を１～８質量％含むことも好適である。また、酸化マグネシウムを１０～５０質量％含むことも好適である。【選択図】図１
NEUTRAL SOLIDIFYING MATERIAL AND SOIL TREATMENT METHOD
To provide a neutral solidifying material capable of improving soil to the soil that demonstrates high strength while maintaining an approximately neutral pH.SOLUTION: A neutral solidifying material of the invention includes: magnesium oxide; at least one kind of sulfate selected from aluminum sulfate, ferrous sulfate, and plaster; and a polymer coagulant having an acrylamide unit and a sodium acrylate unit. A composition ratio of the acrylamide unit constituting the polymer coagulant is 55-90 mol%. It is also preferable to include 1-8 mass% of the polymer coagulant. It is also preferable to include 10-50 mass% of magnesium oxide.SELECTED DRAWING: Figure 1
【課題】ｐＨを中性付近に維持しつつ、且つ高い強度を発現した土に改良できる中性固化材を提供すること。【解決手段】本発明の中性固化材は、酸化マグネシウムと、硫酸アルミニウム、硫酸第一鉄及び石膏のうち少なくとも一種の硫酸塩と、アクリルアミドユニットとアクリル酸ナトリウムユニットとを有する高分子凝集剤とからなり、前記高分子凝集剤を構成するアクリルアミドユニットの組成比が５５～９０ｍｏｌ％である。高分子凝集剤を１～８質量％含むことも好適である。また、酸化マグネシウムを１０～５０質量％含むことも好適である。【選択図】図１
NEUTRAL SOLIDIFYING MATERIAL AND SOIL TREATMENT METHOD
中性固化材及び土の処理方法
UEDA YOICHI (author) / NAKADA HIDEKI (author)
2024-10-07
Patent
Electronic Resource
Japanese
SOLIDIFYING MATERIAL AND PRODUCTION METHOD OF SOLIDIFYING MATERIAL
| European Patent Office | 2016