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Light-weight high-strength ceramsite based on phosphate tailings as well as preparation method and application of light-weight high-strength ceramsite
The invention relates to the technical field of comprehensive utilization of phosphate tailing resources, and discloses light-weight high-strength ceramsite based on phosphate tailings as well as a preparation method and application of the light-weight high-strength ceramsite. The lightweight high-strength ceramsite is prepared from the following raw materials in parts by mass: 61-76 parts of siliceous phosphate tailings, 14-19 parts of steel slag, 5-10 parts of fluorite tailings, 5-10 parts of washed secondary aluminum ash, 3-5 parts of dextrin, 3-5 parts of activated carbon and 5-9 parts of water. According to the light-weight high-strength ceramsite based on the phosphate tailings, the volume density is 1100-1400 kg/m < 3 >, the cylinder compressive strength is 13.5-16.1 MPa, the stacking density is 550-670 kg/m < 3 >, the water absorption rate is 3-9%, the curing rate of heavy metal ions reaches 95% or above, safe use of light-weight concrete can be achieved, all the adopted raw materials are solid waste, comprehensive utilization of the phosphate tailings resources is fully achieved, and the light-weight high-strength ceramsite based on the phosphate tailings is suitable for industrial production. The recycling rate is high and the production cost is low.
本发明涉及磷尾矿资源综合利用技术领域，本发明公开了一种基于磷尾矿的轻质高强陶粒及其制备方法与应用。所述轻质高强陶粒由如下质量份数的原料制得：61～76份硅质磷尾矿，14～19份钢渣，5～10份萤石尾矿，5～10份水洗二次铝灰，3～5份糊精，3～5份活性炭和5～9份水。本发明中所制备的基于磷尾矿的轻质高强陶粒中，体积密度为1100～1400kg/m3，筒压强度13.5～16.1MPa，堆积密度550～670kg/m3，吸水率3～9％，重金属离子的固化率达95％以上，可实现轻量混凝土方向的安全使用，本发明采用的原料均为固废，充分实现了磷尾矿资源的综合利用，资源化率高和生产成本低。
Light-weight high-strength ceramsite based on phosphate tailings as well as preparation method and application of light-weight high-strength ceramsite
The invention relates to the technical field of comprehensive utilization of phosphate tailing resources, and discloses light-weight high-strength ceramsite based on phosphate tailings as well as a preparation method and application of the light-weight high-strength ceramsite. The lightweight high-strength ceramsite is prepared from the following raw materials in parts by mass: 61-76 parts of siliceous phosphate tailings, 14-19 parts of steel slag, 5-10 parts of fluorite tailings, 5-10 parts of washed secondary aluminum ash, 3-5 parts of dextrin, 3-5 parts of activated carbon and 5-9 parts of water. According to the light-weight high-strength ceramsite based on the phosphate tailings, the volume density is 1100-1400 kg/m < 3 >, the cylinder compressive strength is 13.5-16.1 MPa, the stacking density is 550-670 kg/m < 3 >, the water absorption rate is 3-9%, the curing rate of heavy metal ions reaches 95% or above, safe use of light-weight concrete can be achieved, all the adopted raw materials are solid waste, comprehensive utilization of the phosphate tailings resources is fully achieved, and the light-weight high-strength ceramsite based on the phosphate tailings is suitable for industrial production. The recycling rate is high and the production cost is low.
本发明涉及磷尾矿资源综合利用技术领域，本发明公开了一种基于磷尾矿的轻质高强陶粒及其制备方法与应用。所述轻质高强陶粒由如下质量份数的原料制得：61～76份硅质磷尾矿，14～19份钢渣，5～10份萤石尾矿，5～10份水洗二次铝灰，3～5份糊精，3～5份活性炭和5～9份水。本发明中所制备的基于磷尾矿的轻质高强陶粒中，体积密度为1100～1400kg/m3，筒压强度13.5～16.1MPa，堆积密度550～670kg/m3，吸水率3～9％，重金属离子的固化率达95％以上，可实现轻量混凝土方向的安全使用，本发明采用的原料均为固废，充分实现了磷尾矿资源的综合利用，资源化率高和生产成本低。
Light-weight high-strength ceramsite based on phosphate tailings as well as preparation method and application of light-weight high-strength ceramsite
一种基于磷尾矿的轻质高强陶粒及其制备方法与应用
HU NANYAN (author) / LIU HAIPENG (author) / YANG SHENGWEN (author) / YE YICHENG (author) / LI QIGAO (author) / WU YI (author) / LUO BINYU (author) / WANG HONGPING (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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