A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Solid waste grouting material for bridge and tunnel goaf and preparation method of solid waste grouting material
The invention relates to the technical field of grouting materials, and discloses a solid waste grouting material for a bridge and tunnel goaf and a preparation method of the solid waste grouting material. The grouting material is formed by fully mixing steel slag, fly ash, mineral slag, desulfurized gypsum, sodium metasilicate and water at normal temperature, the fluidity of the obtained grouting material is kept below 35 S in the grouting process, the 28d uniaxial compressive strength is larger than or equal to 2 MPa, and the total production cost of the grouting material is smaller than or equal to 200 yuan/ton. The cost can be effectively reduced to be less than or equal to 200 yuan/ton and the flowability is less than or equal to 35 S only by strictly limiting the raw material mixing ratio and the solid-water ratio, sufficiently increasing the low-price solid waste ratio, meeting the national solid waste treatment policy and obtaining the national related economic subsidy, so that the cost can be effectively reduced to be less than or equal to 200 yuan/ton and the flowability can be effectively reduced to be less than or equal to 35 S. The mechanical strength of the grouting material is greater than or equal to 2MPa, and the grouting material has a wide use value in the aspect of a bridge goaf.
本发明涉及注浆材料技术领域，公开了一种用于桥隧采空区的固废注浆材料及其制备方法。包括用钢渣、粉煤灰、矿渣、脱硫石膏、偏硅酸钠和水在常温下充分混合而成，所得注浆材料在注浆过程中流动度保持在35S以下，28d单轴抗压强度大于或等于2MPa，注浆材料的生产总成本小于或等于200元/吨。只有将原材料混合比和固水比严格限定，并且低价格固废占比足够大，切合国家处理固废的政策并获得国家相关经济补贴，才能有效将成本压制到小于或等于200元/吨、流动性小于或等于35S，力学强度大于或等于2MPa的具备在桥梁采空区方面有广泛使用价值的注浆材料。
Solid waste grouting material for bridge and tunnel goaf and preparation method of solid waste grouting material
The invention relates to the technical field of grouting materials, and discloses a solid waste grouting material for a bridge and tunnel goaf and a preparation method of the solid waste grouting material. The grouting material is formed by fully mixing steel slag, fly ash, mineral slag, desulfurized gypsum, sodium metasilicate and water at normal temperature, the fluidity of the obtained grouting material is kept below 35 S in the grouting process, the 28d uniaxial compressive strength is larger than or equal to 2 MPa, and the total production cost of the grouting material is smaller than or equal to 200 yuan/ton. The cost can be effectively reduced to be less than or equal to 200 yuan/ton and the flowability is less than or equal to 35 S only by strictly limiting the raw material mixing ratio and the solid-water ratio, sufficiently increasing the low-price solid waste ratio, meeting the national solid waste treatment policy and obtaining the national related economic subsidy, so that the cost can be effectively reduced to be less than or equal to 200 yuan/ton and the flowability can be effectively reduced to be less than or equal to 35 S. The mechanical strength of the grouting material is greater than or equal to 2MPa, and the grouting material has a wide use value in the aspect of a bridge goaf.
本发明涉及注浆材料技术领域，公开了一种用于桥隧采空区的固废注浆材料及其制备方法。包括用钢渣、粉煤灰、矿渣、脱硫石膏、偏硅酸钠和水在常温下充分混合而成，所得注浆材料在注浆过程中流动度保持在35S以下，28d单轴抗压强度大于或等于2MPa，注浆材料的生产总成本小于或等于200元/吨。只有将原材料混合比和固水比严格限定，并且低价格固废占比足够大，切合国家处理固废的政策并获得国家相关经济补贴，才能有效将成本压制到小于或等于200元/吨、流动性小于或等于35S，力学强度大于或等于2MPa的具备在桥梁采空区方面有广泛使用价值的注浆材料。
Solid waste grouting material for bridge and tunnel goaf and preparation method of solid waste grouting material
一种用于桥隧采空区的固废注浆材料及其制备方法
XIAO JIE (author) / LIU CAIZHUANG (author) / CHANG JIN (author)
2023-10-31
Patent
Electronic Resource
Chinese
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