Compaction characteristics of municipal solid waste (MSW) are the important parameters in the landfill design. Well compacted MSW increases the placement efficiency and thus reduces the space requirement for landfills. The composition of MSW, degradation, and compactive efforts are the key factors that control the compaction characteristics of MSW. This paper presents the laboratory investigation of compaction characteristics of fresh and aged MSW at a wide range of compactive efforts. Fresh MSW (S₁), Windrows sample (S₂) of an age of 2 months, 5-year-old MSW (S₃), 10-year-old MSW (S₄), and 15-year-old MSW (S₅) were collected from the working phase of the solid waste management site, Vilholi Nasik, (MH) India. Compaction was carried in 1000 mL capacity mold under four different energy levels, i.e., 552 (E₁), 1125 (E₂), 2682 (E₃), and 5364 (E₄) kJ/m³. The results showed that the maximum dry density (γ_dmax) was observed less in the S₁ sample at the standard compactive effort. As the age of the sample increase from fresh to 5 years, γ_dmax was more with lesser optimum moisture content (w_opt) because of the completion of the biodegradation process. No further change in compaction characteristics was observed once the biodegradation process was finished. The study shows that the particle size of MSW gets reduced as the age of the sample increased. This reduces the particle size of MSW is one of the contributing factors to increasing γ_dmax. When compactive energy is changed from E₁ to E₄ the γ_dmax increased and w_opt decreased for all the samples. A normalized w_opt and compaction energy correlation is proposed in this study. The correlation can get compaction characteristics of fresh and aged MSW at any compactive effort.

城市垃圾的压实特性是垃圾掩埋场设计的重要参数。紧密压实的城市固体废弃物可提高放置效率，从而减少垃圾填埋场的空间需求。MSW的组成，降解和压实效果是控制MSW压实特性的关键因素。本文介绍了在各种压实作用下新鲜和老化的城市固体废弃物的压实特性的实验室研究。新鲜的MSW（S ₁），2月龄的Windrows样品（S ₂），5岁的MSW（S ₃），10岁的MSW（S ₄）和15岁的MSW（小号₅）是从印度（MH）的Vilholi Nasik固体废物管理站点的工作阶段收集的。压实在1000毫升容量的模具中以四种不同的能级进行，即552（E ₁），1125（E ₂），2682（E ₃）和5364（E ₄）kJ / m ³。结果表明，最大干密度（γ _DMAX）观察在以下小号₁在标准压实努力样品。从新鲜的样本增加至5岁的年龄，γ _DMAX更具有较小的最佳含水量（w ^_选择），因为完成了生物降解过程。生物降解过程完成后，没有观察到压实特性的进一步变化。研究表明，随样品寿命的增加，城市固体废弃物的粒径会减小。这减少MSW的粒径是起作用的因素增加的一个γ _DMAX。当压实能量改变从ë ₁至Ë ₄的γ _DMAX增加和瓦特_选择降低对于所有样品。规范化W¯¯_选择并提出了压实能量相关性。这种相关性可以在任何压实作用下获得新鲜和老化的城市固体废弃物的压实特性。