Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Roadbed water-stable layer prepared from lithium slag synergistically-activated squeezed fine silt and preparation method of roadbed water-stable layer
The invention provides a roadbed water stabilizing layer prepared from lithium slag and activated squeezed fine silt, and the roadbed water stabilizing layer is prepared from the following raw materials in parts by weight: 15-20 parts of lithium slag, 20-30 parts of activated squeezed fine silt, 45-55 parts of graded aggregate, 0-5 parts of a regulator and 9-13 parts of water, the activated squeezed fine silt is obtained by mixing the lepidolite concentrate byproduct tail silt with metakaolin, then performing high-temperature alkali excitation activation and grinding, and the squeezed fine silt subjected to activation treatment forms new living reactive gelling components including calcium silicate, sodium silicate and aluminosilicate. The invention also provides a method for preparing the roadbed water-stable layer by using the lithium slag and the squeezed fine silt in a large mixing amount. The roadbed water-stable layer prepared by the method disclosed by the invention can stabilize and solidify sulfate, prevent a hairy salting-out phenomenon, improve excitation of squeezed fine silt, realize valuable utilization of the lithium slag and the squeezed fine silt in the cement-based water-stable layer, prepare low-carbon engineering building materials and solve the pollution problem of solid wastes and the resource utilization problem.
本发明提供一种锂渣协同活化压榨细泥制备的路基水稳层，按照重量份计，所述的路基水稳层由如下原料制备：锂渣15‑20份，活化压榨细泥20‑30份，级配骨料45‑55份，调节剂0‑5份，水9‑13份；所述活化压榨细泥为选锂云母精矿副产尾泥与偏高岭土混合后经高温碱激发活化及粉磨后得到，经活化处理后压榨细泥形成了新生活性反应胶凝组分硅酸钙、硅酸钠和硅铝酸盐。本发明还提供大掺量利用锂渣和压榨细泥制备路基水稳层的方法。使用本发明方法制备路基水稳层可稳定固化硫酸盐，防止长毛盐析现象，改善压榨细泥的激发，实现锂渣和压榨细泥在水泥基水稳层的有价利用，制备低碳工程建筑材料，解决固废的污染问题和资源利用问题。
Roadbed water-stable layer prepared from lithium slag synergistically-activated squeezed fine silt and preparation method of roadbed water-stable layer
The invention provides a roadbed water stabilizing layer prepared from lithium slag and activated squeezed fine silt, and the roadbed water stabilizing layer is prepared from the following raw materials in parts by weight: 15-20 parts of lithium slag, 20-30 parts of activated squeezed fine silt, 45-55 parts of graded aggregate, 0-5 parts of a regulator and 9-13 parts of water, the activated squeezed fine silt is obtained by mixing the lepidolite concentrate byproduct tail silt with metakaolin, then performing high-temperature alkali excitation activation and grinding, and the squeezed fine silt subjected to activation treatment forms new living reactive gelling components including calcium silicate, sodium silicate and aluminosilicate. The invention also provides a method for preparing the roadbed water-stable layer by using the lithium slag and the squeezed fine silt in a large mixing amount. The roadbed water-stable layer prepared by the method disclosed by the invention can stabilize and solidify sulfate, prevent a hairy salting-out phenomenon, improve excitation of squeezed fine silt, realize valuable utilization of the lithium slag and the squeezed fine silt in the cement-based water-stable layer, prepare low-carbon engineering building materials and solve the pollution problem of solid wastes and the resource utilization problem.
本发明提供一种锂渣协同活化压榨细泥制备的路基水稳层，按照重量份计，所述的路基水稳层由如下原料制备：锂渣15‑20份，活化压榨细泥20‑30份，级配骨料45‑55份，调节剂0‑5份，水9‑13份；所述活化压榨细泥为选锂云母精矿副产尾泥与偏高岭土混合后经高温碱激发活化及粉磨后得到，经活化处理后压榨细泥形成了新生活性反应胶凝组分硅酸钙、硅酸钠和硅铝酸盐。本发明还提供大掺量利用锂渣和压榨细泥制备路基水稳层的方法。使用本发明方法制备路基水稳层可稳定固化硫酸盐，防止长毛盐析现象，改善压榨细泥的激发，实现锂渣和压榨细泥在水泥基水稳层的有价利用，制备低碳工程建筑材料，解决固废的污染问题和资源利用问题。
Roadbed water-stable layer prepared from lithium slag synergistically-activated squeezed fine silt and preparation method of roadbed water-stable layer
一种锂渣协同活化压榨细泥制备的路基水稳层及制备方法
SHI LINYUN (Autor:in) / LU YA (Autor:in) / WEI QI (Autor:in) / CHEN ZHONGFA (Autor:in) / XU WEI (Autor:in)
04.07.2023
Patent
Elektronische Ressource
Chinesisch
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