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A platform for research: civil engineering, architecture and urbanism
Limestone tailing filling material, and preparation method and application thereof
The invention relates to the technical field of filling materials, in particular to a limestone tailing filling material and a preparation method and application thereof. The filling material comprises a limestone tailing cementing material and aggregate in a mass ratio of 1: (3-7). The limestone tailing cementing material comprises the following components in parts by weight: 40-60 parts of limestone tailing powder, 40-60 parts of granulated blast furnace slag, 4-12 parts of cement clinker, 4-12 parts of gypsum, 10-15 parts of steel slag, 2-15 parts of an excitant and 0.2-1.2 parts of a waterreducing agent. The aggregate is original limestone tailings. According to the invention, limestone tailings are fully utilized, and the utilization rate is up to 90% or above, so problems in limestone tailing utilization is solved; the limestone tailings in the cementing material can play a filling role to compact stone bodies, meanwhile, the limestone tailings can promote hydration of cement clinker, and on the other hand, the original-state limestone tailings can serve as the aggregate to improve the mechanical property of the filling material.
本发明涉及充填材料技术领域，具体涉及一种石灰石尾矿充填材料及其制备方法与应用。充填材料包括石灰石尾矿胶凝材料和骨料，且两者的质量比依次序为1：3～7；其中，石灰石尾矿胶凝材料包括以下重量份的组分：石灰石尾矿粉40～60份、粒化高炉矿渣40～60份、水泥熟料4～12份、石膏4～12份、钢渣10～15份、激发剂2～15份、减水剂0.2～1.2份；骨料为原状石灰石尾矿。本发明充分利用了石灰石尾矿，利用率高达90％以上，解决了石灰石尾矿利用的问题，首先在胶凝材料中石灰石尾矿可以起到填充作用密实结石体，同时石灰石尾矿可以促进水泥熟料的水化，另一方面原状石灰石尾矿可以作为集料提高充填材料的力学性能。
Limestone tailing filling material, and preparation method and application thereof
The invention relates to the technical field of filling materials, in particular to a limestone tailing filling material and a preparation method and application thereof. The filling material comprises a limestone tailing cementing material and aggregate in a mass ratio of 1: (3-7). The limestone tailing cementing material comprises the following components in parts by weight: 40-60 parts of limestone tailing powder, 40-60 parts of granulated blast furnace slag, 4-12 parts of cement clinker, 4-12 parts of gypsum, 10-15 parts of steel slag, 2-15 parts of an excitant and 0.2-1.2 parts of a waterreducing agent. The aggregate is original limestone tailings. According to the invention, limestone tailings are fully utilized, and the utilization rate is up to 90% or above, so problems in limestone tailing utilization is solved; the limestone tailings in the cementing material can play a filling role to compact stone bodies, meanwhile, the limestone tailings can promote hydration of cement clinker, and on the other hand, the original-state limestone tailings can serve as the aggregate to improve the mechanical property of the filling material.
本发明涉及充填材料技术领域，具体涉及一种石灰石尾矿充填材料及其制备方法与应用。充填材料包括石灰石尾矿胶凝材料和骨料，且两者的质量比依次序为1：3～7；其中，石灰石尾矿胶凝材料包括以下重量份的组分：石灰石尾矿粉40～60份、粒化高炉矿渣40～60份、水泥熟料4～12份、石膏4～12份、钢渣10～15份、激发剂2～15份、减水剂0.2～1.2份；骨料为原状石灰石尾矿。本发明充分利用了石灰石尾矿，利用率高达90％以上，解决了石灰石尾矿利用的问题，首先在胶凝材料中石灰石尾矿可以起到填充作用密实结石体，同时石灰石尾矿可以促进水泥熟料的水化，另一方面原状石灰石尾矿可以作为集料提高充填材料的力学性能。
Limestone tailing filling material, and preparation method and application thereof
一种石灰石尾矿充填材料及其制备方法与应用
LI ZHAOFENG (author) / WANG YANSHENG (author) / JIN QING (author) / QI YANHAI (author)
2020-10-20
Patent
Electronic Resource
Chinese
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