A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a novel roadbed material containing sludge, which is prepared by the steps of crushing and extruding the sludge containing 50-70% of water into powder, uniformly stirring and mixing the powder, quick lime, sulfamic acid and a metal chelating agent according to a ratio of 100: (10-30): (0.5-2): (0.001-0.005) to form a prepared material, adding the prepared material into a lime-fly ash product, and uniformly stirring to obtain the novel roadbed material. According to the method, the sludge is used as a main raw material, so that a large amount of sludge can be digested, the sludge achieves the purpose of changing wastes into things of value and recycling the wastes, and the method has obvious economic benefits and environmental benefits; and the quick lime and sulfamic acid are used for killing biological bacteria of the sludge, and the stability of the sludge is maintained in an alkaline state, so that the novel roadbed material prepared by the invention has goodintegrity and stability, high compressive strength, water resistance and freezing resistance, realizes cyclic utilization of wastes, and protects the environment.
本发明公开了一种含有污泥的新型路基材料，将含水50～70％的污泥进行破碎挤压成粉料，将粉料和生石灰、氨基磺酸、金属螯合剂按比例100:10～30:0.5～2:0.001～0.005进行均匀搅拌混合形成备料，在备料添加到二灰产品后均匀搅拌,获得含有污泥的新型路基材料，本发明以污泥作主原料，可以消纳大量的污泥，使得污泥达到了变废为宝废物再利用的目的，具有明显的经济效益和环境效益；通过生石灰和氨基磺酸来杀死污泥的生物菌，在碱性的状态下，保持污泥的稳定性，因此本发明所制备得到的新型路基材料具有良好的整体性和稳定性、较高的抗压强度、抗水性和耐冻性，实现了废物的循环利用，保护环境。
The invention discloses a novel roadbed material containing sludge, which is prepared by the steps of crushing and extruding the sludge containing 50-70% of water into powder, uniformly stirring and mixing the powder, quick lime, sulfamic acid and a metal chelating agent according to a ratio of 100: (10-30): (0.5-2): (0.001-0.005) to form a prepared material, adding the prepared material into a lime-fly ash product, and uniformly stirring to obtain the novel roadbed material. According to the method, the sludge is used as a main raw material, so that a large amount of sludge can be digested, the sludge achieves the purpose of changing wastes into things of value and recycling the wastes, and the method has obvious economic benefits and environmental benefits; and the quick lime and sulfamic acid are used for killing biological bacteria of the sludge, and the stability of the sludge is maintained in an alkaline state, so that the novel roadbed material prepared by the invention has goodintegrity and stability, high compressive strength, water resistance and freezing resistance, realizes cyclic utilization of wastes, and protects the environment.
本发明公开了一种含有污泥的新型路基材料，将含水50～70％的污泥进行破碎挤压成粉料，将粉料和生石灰、氨基磺酸、金属螯合剂按比例100:10～30:0.5～2:0.001～0.005进行均匀搅拌混合形成备料，在备料添加到二灰产品后均匀搅拌,获得含有污泥的新型路基材料，本发明以污泥作主原料，可以消纳大量的污泥，使得污泥达到了变废为宝废物再利用的目的，具有明显的经济效益和环境效益；通过生石灰和氨基磺酸来杀死污泥的生物菌，在碱性的状态下，保持污泥的稳定性，因此本发明所制备得到的新型路基材料具有良好的整体性和稳定性、较高的抗压强度、抗水性和耐冻性，实现了废物的循环利用，保护环境。
Preparation method of novel environment-friendly roadbed material containing sludge
| European Patent Office | 2023
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| European Patent Office | 2024
| European Patent Office | 2024