Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
BACK-FILLING MATERIAL
PROBLEM TO BE SOLVED: To provide a back-filling material hardly being deteriorated even used under freezing point.SOLUTION: There is provided a slurry-like back-filling material, containing (a) slag or fly ash, (b) bentonite and (c) sodium silicate, and having molar ratio of SiOto NaO in the sodium silicate in a range of 0.9 to 2.85, concentration of the (a) component in the back-filling material in a range of 4 to 30 mass%, concentration of the bentonite in the back-filling material in a range of 20 to 40 mass% and concentration of the sodium silicate in the back-filling material in a range of 12 to 76 mass%.SELECTED DRAWING: Figure 1
【課題】氷点下で使用しても劣化しにくい裏込材を提供すること。【解決手段】スラリー状の裏込材であって、（ａ）スラグ又はフライアッシュ、（ｂ）ベントナイト、及び（ｃ）けい酸ソーダを含み、前記けい酸ソーダにおけるＮａ２Ｏに対するＳｉＯ２のモル比が０．９〜２．８５の範囲にあり、前記裏込材における前記（ａ）成分の濃度が４〜３０質量％の範囲にあり、前記裏込材における前記ベントナイトの濃度が２０〜４０質量％の範囲にあり、前記裏込材における前記けい酸ソーダの濃度が１２〜７６質量％の範囲にある裏込材。【選択図】 図１
BACK-FILLING MATERIAL
PROBLEM TO BE SOLVED: To provide a back-filling material hardly being deteriorated even used under freezing point.SOLUTION: There is provided a slurry-like back-filling material, containing (a) slag or fly ash, (b) bentonite and (c) sodium silicate, and having molar ratio of SiOto NaO in the sodium silicate in a range of 0.9 to 2.85, concentration of the (a) component in the back-filling material in a range of 4 to 30 mass%, concentration of the bentonite in the back-filling material in a range of 20 to 40 mass% and concentration of the sodium silicate in the back-filling material in a range of 12 to 76 mass%.SELECTED DRAWING: Figure 1
【課題】氷点下で使用しても劣化しにくい裏込材を提供すること。【解決手段】スラリー状の裏込材であって、（ａ）スラグ又はフライアッシュ、（ｂ）ベントナイト、及び（ｃ）けい酸ソーダを含み、前記けい酸ソーダにおけるＮａ２Ｏに対するＳｉＯ２のモル比が０．９〜２．８５の範囲にあり、前記裏込材における前記（ａ）成分の濃度が４〜３０質量％の範囲にあり、前記裏込材における前記ベントナイトの濃度が２０〜４０質量％の範囲にあり、前記裏込材における前記けい酸ソーダの濃度が１２〜７６質量％の範囲にある裏込材。【選択図】 図１
BACK-FILLING MATERIAL
裏込材
SASAHARA SHIGEO (Autor:in) / KUROIWA DAICHI (Autor:in) / MITANI YOSHIHIRO (Autor:in) / NISHIDA YOSHIO (Autor:in) / NISHIDA YASUO (Autor:in) / ISHII HIROYASU (Autor:in)
14.12.2017
Patent
Elektronische Ressource
Japanisch
INJECTION METHOD AND DEVICE FOR TUNNEL BACK-FILLING MATERIAL, AND BACK-FILLING MATERIAL
| Europäisches Patentamt | 2022