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A platform for research: civil engineering, architecture and urbanism
Nickel-iron slag-based shield tunnel backfill grouting material and preparation method thereof
The invention relates to a nickel-iron slag-based shield tunnel wall post-grouting material which comprises the following components in parts by mass: 30-50 parts of blast furnace nickel-iron slag, 20-50 parts of fly ash, 5-20 parts of boric sludge, 0.5-3 parts of an activating agent, 5-20 parts of a blender, 80-110 parts of an exciting agent solution, 100-150 parts of recycled fine aggregate and 3-5 parts of an additive, and the water-binder ratio of the nickel-iron slag-based shield tunnel wall post-grouting material is 0.45-0.8. The preparation method comprises the following steps: weighing the materials in parts by weight; preparing blast furnace ferronickel slag powder; manufacturing recycled fine aggregate sand; preparing an exciting agent solution; making gel material neat paste; and adding the recycled fine aggregate, a blender and an additive to obtain the nickel-iron slag-based shield tunnel backfill grouting material. The cement single-liquid grouting material is low in energy consumption, energy-saving, environment-friendly, low in production cost and high in production efficiency, has the characteristics of high strength, good coagulability, good fluidity and the like, can replace a traditional cement single-liquid grouting material, can effectively reduce the use of Portland cement, and is beneficial to reutilization of solid waste resources.
本发明涉及一种镍铁渣基盾构隧道壁后注浆材料，按质量份数计，组分如下：高炉镍铁渣30～50份，粉煤灰20～50份，硼泥5～20份，活化剂0.5～3份，调和剂5～20份，激发剂溶液80～110份，再生细骨料100～150份，外加剂3～5份，镍铁渣基盾构隧道壁后注浆材料的水胶比为0.45～0.8。制备方法：按照重量份数称取材料；制作高炉镍铁渣粉；制作再生细骨料砂；制作激发剂溶液；制作胶凝材料净浆；加入再生细骨料、调和剂、外加剂得到镍铁渣基盾构隧道壁后注浆材料。本发明低耗能、节能环保、生产成本低、生产效率高，同时具有强度高、凝结性好、流动性好等特点，可替代传统水泥单液注浆材料，可有效减少硅酸盐水泥的使用，有利于固废资源再利用。
Nickel-iron slag-based shield tunnel backfill grouting material and preparation method thereof
The invention relates to a nickel-iron slag-based shield tunnel wall post-grouting material which comprises the following components in parts by mass: 30-50 parts of blast furnace nickel-iron slag, 20-50 parts of fly ash, 5-20 parts of boric sludge, 0.5-3 parts of an activating agent, 5-20 parts of a blender, 80-110 parts of an exciting agent solution, 100-150 parts of recycled fine aggregate and 3-5 parts of an additive, and the water-binder ratio of the nickel-iron slag-based shield tunnel wall post-grouting material is 0.45-0.8. The preparation method comprises the following steps: weighing the materials in parts by weight; preparing blast furnace ferronickel slag powder; manufacturing recycled fine aggregate sand; preparing an exciting agent solution; making gel material neat paste; and adding the recycled fine aggregate, a blender and an additive to obtain the nickel-iron slag-based shield tunnel backfill grouting material. The cement single-liquid grouting material is low in energy consumption, energy-saving, environment-friendly, low in production cost and high in production efficiency, has the characteristics of high strength, good coagulability, good fluidity and the like, can replace a traditional cement single-liquid grouting material, can effectively reduce the use of Portland cement, and is beneficial to reutilization of solid waste resources.
本发明涉及一种镍铁渣基盾构隧道壁后注浆材料，按质量份数计，组分如下：高炉镍铁渣30～50份，粉煤灰20～50份，硼泥5～20份，活化剂0.5～3份，调和剂5～20份，激发剂溶液80～110份，再生细骨料100～150份，外加剂3～5份，镍铁渣基盾构隧道壁后注浆材料的水胶比为0.45～0.8。制备方法：按照重量份数称取材料；制作高炉镍铁渣粉；制作再生细骨料砂；制作激发剂溶液；制作胶凝材料净浆；加入再生细骨料、调和剂、外加剂得到镍铁渣基盾构隧道壁后注浆材料。本发明低耗能、节能环保、生产成本低、生产效率高，同时具有强度高、凝结性好、流动性好等特点，可替代传统水泥单液注浆材料，可有效减少硅酸盐水泥的使用，有利于固废资源再利用。
Nickel-iron slag-based shield tunnel backfill grouting material and preparation method thereof
一种镍铁渣基盾构隧道壁后注浆材料及其制备方法
LIU JIANPING (author) / SONG GE (author) / GE XIAOWEI (author) / LIU KAIXIN (author) / TIAN YULIN (author) / LIU BING (author) / WANG YING (author) / XU XIAOCHUAN (author) / YU JINGMIN (author)
2024-05-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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