Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel pavement base material for inhibiting frost heaving deformation and preparation method thereof
The invention discloses a novel pavement base material for inhibiting frost heaving deformation and a preparation method thereof, and belongs to the technical field of pavement base materials. The pavement base material comprises 20% of blast furnace slag, 50% of red mud and 30% of carbide slag, the polypropylene fiber accounts for 0.3-0.8% of the total mass of the blast furnace slag, the red mud and the carbide slag, the alkali-activated material is industrial NaOH, the use amount of the alkali-activated material accounts for 4% of the total mass of the blast furnace slag, the red mud and the carbide slag, and the water consumption is the water consumption required by the mixed dry material of the blast furnace slag, the red mud and the carbide slag to achieve the optimal water content. The novel pavement base material capable of inhibiting frost heaving deformation can be prepared by sequentially mixing and mechanically compacting the materials. The alkaline environment of the red mud and the carbide slag is utilized to excite the pozzolanic activity of the slag, the high tensile strength of the polypropylene fiber is utilized to inhibit frost heaving of the roadbed material caused by phase change of internal moisture in a low-temperature environment, and long-term use of the roadbed material is facilitated. The roadbed material can be applied to alpine regions and eastern regions, and has certain practical significance.
一种抑制冻胀变形的新型路面基层材料及其制备方法，属于路面基层材料技术领域。路面基层材料为高炉矿渣20％，赤泥50％，电石渣30％，聚丙烯纤维用量为高炉矿渣、赤泥、电石渣总质量的0.3‑0.8％，碱激发材料为工业级NaOH，用量为高炉矿渣、赤泥、电石渣总质量的4％，用水量为高炉矿渣、赤泥、电石渣混合干料达到最佳含水率所需用水量，将所述材料依次拌合，机械压实后，就可制得一种抑制冻胀变形的新型路面基层材料。本发明利用赤泥、电石渣的碱性环境激发矿渣的火山灰活性，利用聚丙烯纤维较高的抗拉强度，抑制路基材料在低温环境中内部水分相变所产生的冻胀，有利于所述路基材料长期使用。该路基材料可应用于高寒地区和季东区，具有一定的实用意义。
Novel pavement base material for inhibiting frost heaving deformation and preparation method thereof
The invention discloses a novel pavement base material for inhibiting frost heaving deformation and a preparation method thereof, and belongs to the technical field of pavement base materials. The pavement base material comprises 20% of blast furnace slag, 50% of red mud and 30% of carbide slag, the polypropylene fiber accounts for 0.3-0.8% of the total mass of the blast furnace slag, the red mud and the carbide slag, the alkali-activated material is industrial NaOH, the use amount of the alkali-activated material accounts for 4% of the total mass of the blast furnace slag, the red mud and the carbide slag, and the water consumption is the water consumption required by the mixed dry material of the blast furnace slag, the red mud and the carbide slag to achieve the optimal water content. The novel pavement base material capable of inhibiting frost heaving deformation can be prepared by sequentially mixing and mechanically compacting the materials. The alkaline environment of the red mud and the carbide slag is utilized to excite the pozzolanic activity of the slag, the high tensile strength of the polypropylene fiber is utilized to inhibit frost heaving of the roadbed material caused by phase change of internal moisture in a low-temperature environment, and long-term use of the roadbed material is facilitated. The roadbed material can be applied to alpine regions and eastern regions, and has certain practical significance.
一种抑制冻胀变形的新型路面基层材料及其制备方法，属于路面基层材料技术领域。路面基层材料为高炉矿渣20％，赤泥50％，电石渣30％，聚丙烯纤维用量为高炉矿渣、赤泥、电石渣总质量的0.3‑0.8％，碱激发材料为工业级NaOH，用量为高炉矿渣、赤泥、电石渣总质量的4％，用水量为高炉矿渣、赤泥、电石渣混合干料达到最佳含水率所需用水量，将所述材料依次拌合，机械压实后，就可制得一种抑制冻胀变形的新型路面基层材料。本发明利用赤泥、电石渣的碱性环境激发矿渣的火山灰活性，利用聚丙烯纤维较高的抗拉强度，抑制路基材料在低温环境中内部水分相变所产生的冻胀，有利于所述路基材料长期使用。该路基材料可应用于高寒地区和季东区，具有一定的实用意义。
Novel pavement base material for inhibiting frost heaving deformation and preparation method thereof
一种抑制冻胀变形的新型路面基层材料及制备方法
SUN QI (Autor:in) / CHEN XIAOXIAO (Autor:in) / LI BOTAO (Autor:in) / QI CHUNXIAO (Autor:in) / WANG GUJIAN (Autor:in) / ZHAO HONGYE (Autor:in)
13.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Engineering Index Backfile | 1965
Frost heaving resistant roadbed and construction method thereof
| Europäisches Patentamt | 2024