A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SOLIDIFYING MATERIAL SLURRY
To provide a solidifying material slurry in which the degree of decrease in the pumpability is small even after a long period of time after the kneading/mixing of solidifying material slurry.SOLUTION: Provided is a solidifying material slurry containing cement, water, and chemical admixture, and in which the water cement ratio is less than 42%, and the plastic viscosity measured for the case of immediately after the kneading/mixing under a temperature of 30°C is 50 mPa-s or less. Preferred chemical admixture is polycarboxylic acid-based or naphthalenesulfonic acid-based admixture. An example of the ground improvement method using solidifying material slurry includes a method of injecting the solidifying material slurry into the ground within 90 minutes after the kneading/mixing, and mixing/stirring.SELECTED DRAWING: None
【課題】固化材スラリーを練り混ぜた後、長時間経過しても、圧送性の低下の程度の小さい固化材スラリーを提供する。【解決手段】セメント、水、及び化学混和剤を含み、かつ、水セメント比が４２％未満である固化材スラリーであって、３０℃の温度下で練混ぜ直後に測定した場合における塑性粘度が、５０ｍＰａ・ｓ以下である固化材スラリー。好ましい化学混和剤は、ポリカルボン酸系またはナフタレンスルホン酸系の混和剤である。固化材スラリーを用いた地盤改良方法の一例は、練混ぜから９０分間以内に上記固化材スラリーを地盤中に注入し混合撹拌する方法が挙げられる。【選択図】なし
SOLIDIFYING MATERIAL SLURRY
To provide a solidifying material slurry in which the degree of decrease in the pumpability is small even after a long period of time after the kneading/mixing of solidifying material slurry.SOLUTION: Provided is a solidifying material slurry containing cement, water, and chemical admixture, and in which the water cement ratio is less than 42%, and the plastic viscosity measured for the case of immediately after the kneading/mixing under a temperature of 30°C is 50 mPa-s or less. Preferred chemical admixture is polycarboxylic acid-based or naphthalenesulfonic acid-based admixture. An example of the ground improvement method using solidifying material slurry includes a method of injecting the solidifying material slurry into the ground within 90 minutes after the kneading/mixing, and mixing/stirring.SELECTED DRAWING: None
【課題】固化材スラリーを練り混ぜた後、長時間経過しても、圧送性の低下の程度の小さい固化材スラリーを提供する。【解決手段】セメント、水、及び化学混和剤を含み、かつ、水セメント比が４２％未満である固化材スラリーであって、３０℃の温度下で練混ぜ直後に測定した場合における塑性粘度が、５０ｍＰａ・ｓ以下である固化材スラリー。好ましい化学混和剤は、ポリカルボン酸系またはナフタレンスルホン酸系の混和剤である。固化材スラリーを用いた地盤改良方法の一例は、練混ぜから９０分間以内に上記固化材スラリーを地盤中に注入し混合撹拌する方法が挙げられる。【選択図】なし
SOLIDIFYING MATERIAL SLURRY
固化材スラリー
KOSUDA KAZUKI (author) / NOZAKI TAKAHITO (author) / HIGO YASUHIDE (author)
2020-07-09
Patent
Electronic Resource
Japanese
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