Academic Journal
电解锰渣-生活垃圾焚烧底渣协同制备 路面基层材料试验研究.
| العنوان: | 电解锰渣-生活垃圾焚烧底渣协同制备 路面基层材料试验研究. (Chinese) |
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| Alternate Title: | Experimental Research on Synergistic Preparation of Road Base Material by Electrolytic Manganese Residue-Municipal Solid Waste Incineration Bottom Ash. (English) |
| المؤلفون: | 张先伟, 高永红, 王 平, 李江山, 刘世宇, 郎 雷, 雷学文 |
| المصدر: | Bulletin of the Chinese Ceramic Society; Apr2023, Vol. 42 Issue 4, p1363-1373, 11p |
| مصطلحات موضوعية: | MUNICIPAL solid waste incinerator residues, ELECTROLYTIC manganese, MECHANICAL drawing, POROSITY, SOIL cement, HEAVY metals, POTSHERDS |
| مصطلحات جغرافية: | CHINA |
| Abstract (English): | There is a large stock and serious pollution of electrolytic manganese residue and municipal solid waste incineration bottom ash in our country, and it is urgent to develop economically and technically feasible resource utilization technologies. Electrolytic manganese residue and municipal solid waste incineration bottom ash were used to prepare a road base material ( RBM), and the chemical composition, mechanical properties, durability, leaching characteristics, hydration products, and pore structure of RBM with different Ca/ Si ratios (mass ratio) were studied. The hydration products and microstructure of RBM were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TG), scanning electron microscope-energy dispersive spectrometer (SEM-EDX), and mercury intrusion porosimetry methods. The leaching characteristics of RBM were studied by leaching test. The results show that when the Ca/ Si ratio is 0. 8, the mechanical properties and pore structure of RBM are optimal, and the unconfined compressive strength (UCS) reaches 9. 06 MPa after curing for 7 d, which meets the Class I standard of cement soil road base in China. The 28 d UCS of RBM after 9 freezing-thawing cycles and drying-wetting cycles is 11. 63 and 9. 90 MPa, respectively. The main hydration products in RBM are CaAl |
| Abstract (Chinese): | 我国电解锰渣和城市生活垃圾焚烧底渣堆存量大,污染严重,亟需开发经济可行的资源化利用技术。采用电 解锰渣和城市生活垃圾焚烧底渣制备一种路面基层材料(RBM),并研究以不同Ca/ Si 比(质量比)制备的RBM 的 化学组成、力学性能、耐久性、浸出特性、水化产物和孔隙结构。采用X 射线衍射(XRD)、热重分析(TG)、扫描电子 显微镜-能谱(SEM-EDX)和压汞等表征手段研究RBM 的水化产物及微观结构,利用浸出试验研究RBM 的浸出特 性。结果表明,当Ca/ Si 为0. 8 时,RBM 力学性能和孔隙结构最优,养护7 d 后的无侧限抗压强度(UCS) 达 9. 06 MPa,满足中国水泥土路面基层I 级标准。RBM 耐久性优异,养护28 d 的RBM 经过9 次冻融循环和干湿循环 试验后,UCS 分别为11. 63、9. 90 MPa。RBM 中的主要水化产物为CaAl2 Si |
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| قاعدة البيانات: | Complementary Index |
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