A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of geopolymer concrete preparation, and particularly relates to a method for preparing geopolymer concrete by using superfine high-aluminum iron tailings, which comprises the following steps: 1) mixing waste glass and superfine high-aluminum iron tailings, and carrying out ball milling to obtain superfine powder with the granularity of 800 meshes; 2) mixing the obtained ultrafine powder with sodium hydroxide, sodium silicate and metal oxide according to a ratio, and then adding a water reducing agent to obtain a mixture; (3) mixing the obtained mixture with pebbles and machine-made sand in proportion to obtain a cement substitute material; adding water into the cement substitute and mixing to obtain mixed slurry; and 4) pouring the mixed slurry into a mold, and curing to obtain the geopolymer concrete. According to the invention, the superfine high-aluminum iron tailings and the waste glass are used as raw materials, and are combined with other raw materials such as the metal oxide, the sodium hydroxide and the sodium silicate to obtain the geopolymer to replace cement to generate concrete, so that the secondary utilization of the superfine high-aluminum iron tailings is realized.
本发明属于地质聚合物混凝土制备技术领域，具体涉及一种利用超细高铝铁尾矿制备地质聚合物混凝土的方法，包括如下步骤：1)将废弃玻璃和超细高铝铁尾矿混合，球磨得到粒度为800目的超细粉；2)将得到的超细粉按配比与氢氧化钠、硅酸钠、金属氧化物混合，再加入减水剂，得到混合物；3)将得到的混合物按配比与石子、机制砂混合，得到水泥替代料；向水泥替代料中加水混合，得到混合浆料；4)将混合浆料浇入模具，养护，得到地质聚合物混凝土。本发明使用超细高铝铁尾矿和废弃玻璃为原料，通过将其和金属氧化物、氢氧化钠和硅酸钠等其他原料共同作用，得到地质聚合物，替代水泥生成混凝土，实现了超细高铝铁尾矿的二次利用。
The invention belongs to the technical field of geopolymer concrete preparation, and particularly relates to a method for preparing geopolymer concrete by using superfine high-aluminum iron tailings, which comprises the following steps: 1) mixing waste glass and superfine high-aluminum iron tailings, and carrying out ball milling to obtain superfine powder with the granularity of 800 meshes; 2) mixing the obtained ultrafine powder with sodium hydroxide, sodium silicate and metal oxide according to a ratio, and then adding a water reducing agent to obtain a mixture; (3) mixing the obtained mixture with pebbles and machine-made sand in proportion to obtain a cement substitute material; adding water into the cement substitute and mixing to obtain mixed slurry; and 4) pouring the mixed slurry into a mold, and curing to obtain the geopolymer concrete. According to the invention, the superfine high-aluminum iron tailings and the waste glass are used as raw materials, and are combined with other raw materials such as the metal oxide, the sodium hydroxide and the sodium silicate to obtain the geopolymer to replace cement to generate concrete, so that the secondary utilization of the superfine high-aluminum iron tailings is realized.
本发明属于地质聚合物混凝土制备技术领域，具体涉及一种利用超细高铝铁尾矿制备地质聚合物混凝土的方法，包括如下步骤：1)将废弃玻璃和超细高铝铁尾矿混合，球磨得到粒度为800目的超细粉；2)将得到的超细粉按配比与氢氧化钠、硅酸钠、金属氧化物混合，再加入减水剂，得到混合物；3)将得到的混合物按配比与石子、机制砂混合，得到水泥替代料；向水泥替代料中加水混合，得到混合浆料；4)将混合浆料浇入模具，养护，得到地质聚合物混凝土。本发明使用超细高铝铁尾矿和废弃玻璃为原料，通过将其和金属氧化物、氢氧化钠和硅酸钠等其他原料共同作用，得到地质聚合物，替代水泥生成混凝土，实现了超细高铝铁尾矿的二次利用。
Method for preparing geopolymer concrete by using superfine high-aluminum iron tailings
一种利用超细高铝铁尾矿制备地质聚合物混凝土的方法
2024-02-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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