Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention belongs to the technical field of grouting materials, and particularly relates to a premixed shield synchronous grouting material which comprises the following raw materials: cement, fly ash, bentonite, silica fume, methyl cellulose, polyacrylamide and a water-resistant and anti-seepage additive, and the water-resistant and anti-seepage additive is composed of silicic acid mud, a curing agent, a water reducing agent, latex powder and aluminum sulfate. Wherein the silicic acid mud is pozzolanic silicate mud and is superfine powder with activity, and the superfine powder can effectively fill micropores existing after the grouting material is formed, so that the porous structure of the grouting material after the grouting material is formed is effectively improved, and the overall anti-permeability performance of the grouting material after the grouting material is formed is greatly improved; meanwhile, the curing agent can adsorb erosive ions entering the grouting material under the action of molecular gravity, double synergistic protection on the grouting material is formed by the curing agent and the silicic acid mud, the water reducing agent, the latex powder and the aluminum sulfate are used in a composite mode, and the proper stirring speed enables the whole grouting material to have the fluidity, so that the grouting material is more environmentally friendly. Good cohesiveness and stability are realized.
本发明属于注浆料技术领域，具体涉及预拌盾构同步注浆料，其原材料组成包括：水泥、粉煤灰、膨润土、硅灰、甲基纤维素、聚丙烯酰胺、耐水抗渗添加剂，耐水抗渗添加剂由硅酸泥、固化剂、减水剂、乳胶粉和硫酸铝组成，其中硅酸泥为火山灰质的硅酸盐泥，是具有活性的超细粉体，超细粉体可有效填补注浆料成型后所存在的微孔，从而有效改善注浆料成型后的多孔结构，使得注浆料成型后整体抗渗性能得到大幅提升，同时固化剂通过分子引力作用可吸附进入注浆料体上的具有侵蚀性的离子，与硅酸泥形成对注浆料的双重协同保护，减水剂、乳胶粉和硫酸铝的复合使用以及合适的搅拌速率使得注浆料整体在具有流动性的前提下，具有较好的粘聚性和稳定性。
The invention belongs to the technical field of grouting materials, and particularly relates to a premixed shield synchronous grouting material which comprises the following raw materials: cement, fly ash, bentonite, silica fume, methyl cellulose, polyacrylamide and a water-resistant and anti-seepage additive, and the water-resistant and anti-seepage additive is composed of silicic acid mud, a curing agent, a water reducing agent, latex powder and aluminum sulfate. Wherein the silicic acid mud is pozzolanic silicate mud and is superfine powder with activity, and the superfine powder can effectively fill micropores existing after the grouting material is formed, so that the porous structure of the grouting material after the grouting material is formed is effectively improved, and the overall anti-permeability performance of the grouting material after the grouting material is formed is greatly improved; meanwhile, the curing agent can adsorb erosive ions entering the grouting material under the action of molecular gravity, double synergistic protection on the grouting material is formed by the curing agent and the silicic acid mud, the water reducing agent, the latex powder and the aluminum sulfate are used in a composite mode, and the proper stirring speed enables the whole grouting material to have the fluidity, so that the grouting material is more environmentally friendly. Good cohesiveness and stability are realized.
本发明属于注浆料技术领域，具体涉及预拌盾构同步注浆料，其原材料组成包括：水泥、粉煤灰、膨润土、硅灰、甲基纤维素、聚丙烯酰胺、耐水抗渗添加剂，耐水抗渗添加剂由硅酸泥、固化剂、减水剂、乳胶粉和硫酸铝组成，其中硅酸泥为火山灰质的硅酸盐泥，是具有活性的超细粉体，超细粉体可有效填补注浆料成型后所存在的微孔，从而有效改善注浆料成型后的多孔结构，使得注浆料成型后整体抗渗性能得到大幅提升，同时固化剂通过分子引力作用可吸附进入注浆料体上的具有侵蚀性的离子，与硅酸泥形成对注浆料的双重协同保护，减水剂、乳胶粉和硫酸铝的复合使用以及合适的搅拌速率使得注浆料整体在具有流动性的前提下，具有较好的粘聚性和稳定性。
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