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A platform for research: civil engineering, architecture and urbanism
Activated low-silicon iron tailing powder and composite cementing material preparation method
The invention belongs to the field of building materials, relates to preparation of activated low-silicon iron tailing powder and a composite cementing material, and aims to provide a method for effectively utilizing solid waste iron tailing resources. The method comprises the following steps: 1) crushing the low-silicon iron tailings; 2) pretreating the low-silicon iron tailing powder by a two-dimensional coupling activation process; and 3) preparing the composite cementing material with excellent performance by utilizing the activated low-silicon iron tailing powder. The technical problem that the low-silicon iron tailing powder cannot be directly used in cement and concrete can be effectively solved, the 28d activity index of the low-silicon iron tailing powder can reach 78.4% through an activation pretreatment mode, and the activation process is relatively simple. According to the technical scheme, the low-silicon iron tailings can be fully developed and utilized to prepare the composite cementing material, cyclic utilization of resources and waste reduction are promoted, and dependence on traditional raw materials is reduced.
本发明属于建筑材料领域，涉及一种活化低硅型铁尾矿粉及复合胶凝材料制备，旨在提供一种有效利用固体废弃物铁尾矿资源的方法。所述方法包括以下步骤：1）低硅型铁尾矿破碎处理；2）二维耦合活化工艺预处理低硅型铁尾矿粉；3）利用活化后低硅型铁尾矿粉制备性能优异的复合胶凝材料。该发明能有效解决低硅型铁尾矿粉不能直接用于水泥和混凝土中这一技术难题，通过活化预处理方式，其28d活性指数可达78.4%，且活化工艺相对简单。本发明的技术方案能充分开发和利用低硅型铁尾矿制备复合胶凝材料，促进了资源的循环利用和废弃物减量化，减少了对传统原材料的依赖。
Activated low-silicon iron tailing powder and composite cementing material preparation method
The invention belongs to the field of building materials, relates to preparation of activated low-silicon iron tailing powder and a composite cementing material, and aims to provide a method for effectively utilizing solid waste iron tailing resources. The method comprises the following steps: 1) crushing the low-silicon iron tailings; 2) pretreating the low-silicon iron tailing powder by a two-dimensional coupling activation process; and 3) preparing the composite cementing material with excellent performance by utilizing the activated low-silicon iron tailing powder. The technical problem that the low-silicon iron tailing powder cannot be directly used in cement and concrete can be effectively solved, the 28d activity index of the low-silicon iron tailing powder can reach 78.4% through an activation pretreatment mode, and the activation process is relatively simple. According to the technical scheme, the low-silicon iron tailings can be fully developed and utilized to prepare the composite cementing material, cyclic utilization of resources and waste reduction are promoted, and dependence on traditional raw materials is reduced.
本发明属于建筑材料领域，涉及一种活化低硅型铁尾矿粉及复合胶凝材料制备，旨在提供一种有效利用固体废弃物铁尾矿资源的方法。所述方法包括以下步骤：1）低硅型铁尾矿破碎处理；2）二维耦合活化工艺预处理低硅型铁尾矿粉；3）利用活化后低硅型铁尾矿粉制备性能优异的复合胶凝材料。该发明能有效解决低硅型铁尾矿粉不能直接用于水泥和混凝土中这一技术难题，通过活化预处理方式，其28d活性指数可达78.4%，且活化工艺相对简单。本发明的技术方案能充分开发和利用低硅型铁尾矿制备复合胶凝材料，促进了资源的循环利用和废弃物减量化，减少了对传统原材料的依赖。
Activated low-silicon iron tailing powder and composite cementing material preparation method
一种活化低硅型铁尾矿粉及复合胶凝材料制备方法
SHI HUAWANG (author) / XUE SANFENG (author) / QIAO FENG (author) / WANG HONGYUAN (author) / WU XIANGYANG (author) / ZHANG BO (author) / SHI ZHENYAO (author) / CHEN HUILIN (author) / ZHAO JIANBIN (author) / WANG JIAWEI (author)
2023-09-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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