A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GROUND IMPROVEMENT MATERIAL SLURRY AND GROUND IMPROVEMENT CONSTRUCTION METHOD
To provide a ground improvement material slurry that, when mixed with a cohesive soil constituting the ground to form a slime, enables stably pumping of the slime, and, when injected into the ground, gives a sufficiently hardened state.SOLUTION: Provided is a ground improvement material slurry, which is a ground improvement material slurry that contains a cement and/or blast furnace slag fine powder, a viscosity reducing agent comprising polyacrylic acid and alkali metal carbonate, and water, and in which the amount of chlorine in the ground improvement material slurry is 40 ppm to 2000 ppm, the pH value of the ground improvement material slurry is 10 to 13, and the oxidation-reduction potential is -0.4 to 0.1 V.SELECTED DRAWING: None
【課題】地盤を構成する粘性土と混合してスライムとした際に当該スライムの安定的な圧送が可能で、地盤中に注入した際に十分な硬化状態が得られる地盤改良材料スラリーを提供する。【解決手段】セメントおよび／または高炉スラグ微粉末と、ポリアクリル酸類およびアルカリ金属炭酸塩からなる粘性低減剤と、水とを含む地盤改良材料スラリーであって、前記地盤改良材料スラリー中の塩素の量が、４０ｐｐｍ～２０００ｐｐｍであり、前記地盤改良材料スラリーのｐＨ値が１０～１３、酸化還元電位が－０．４～０．１Ｖである地盤改良材料スラリーである。【選択図】なし
GROUND IMPROVEMENT MATERIAL SLURRY AND GROUND IMPROVEMENT CONSTRUCTION METHOD
To provide a ground improvement material slurry that, when mixed with a cohesive soil constituting the ground to form a slime, enables stably pumping of the slime, and, when injected into the ground, gives a sufficiently hardened state.SOLUTION: Provided is a ground improvement material slurry, which is a ground improvement material slurry that contains a cement and/or blast furnace slag fine powder, a viscosity reducing agent comprising polyacrylic acid and alkali metal carbonate, and water, and in which the amount of chlorine in the ground improvement material slurry is 40 ppm to 2000 ppm, the pH value of the ground improvement material slurry is 10 to 13, and the oxidation-reduction potential is -0.4 to 0.1 V.SELECTED DRAWING: None
【課題】地盤を構成する粘性土と混合してスライムとした際に当該スライムの安定的な圧送が可能で、地盤中に注入した際に十分な硬化状態が得られる地盤改良材料スラリーを提供する。【解決手段】セメントおよび／または高炉スラグ微粉末と、ポリアクリル酸類およびアルカリ金属炭酸塩からなる粘性低減剤と、水とを含む地盤改良材料スラリーであって、前記地盤改良材料スラリー中の塩素の量が、４０ｐｐｍ～２０００ｐｐｍであり、前記地盤改良材料スラリーのｐＨ値が１０～１３、酸化還元電位が－０．４～０．１Ｖである地盤改良材料スラリーである。【選択図】なし
GROUND IMPROVEMENT MATERIAL SLURRY AND GROUND IMPROVEMENT CONSTRUCTION METHOD
地盤改良材料スラリーおよび地盤改良工法
SAITO MAKOTO (author) / SASAKI TAKASHI (author) / ITO HIROKI (author)
2022-04-11
Patent
Electronic Resource
Japanese
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