Despite numerous studies concerning the application of by-products in the construction field, municipal solid waste incineration (MSWI) residues are not widely used as secondary building materials. In some European countries, washing treatment to the full bottom ash (BA) fraction (0–32 mm) is applied, isolating more contaminated particles, smaller than 0.063 mm. Therefore, a MWSI sludge is produced, having a high moisture content, and thus a limited presence of soluble species. In order to enhance its performance as building material, here, dry mechanical activation is applied on MSWI sludge. Thereafter, a reactivity comparison between reference BA and untreated and treated MSWI sludge is provided, evaluating their behaviour in the presence of cement and their pozzolanic activity. Moreover, the mechanical performances, as 25% substitution of Portland cement (PC) are assessed, based on the EN 450. Mechanical activation enhances MSWI sludge physically due to the improved particle morphology and packing. Chemically, the hydration degree of PC is enhanced by the MSWI sludge by ≈25%. The milling treatment proved to be beneficial to the residues performances in the presence of PC, providing 32% higher strength than untreated sample. Environmentally, the compliance with the unshaped material legislation is successfully verified, according to the Soil Quality Decree.

尽管有许多关于副产物在建筑领域中的应用的研究，但是城市固体垃圾焚烧（MSWI）残留物并未广泛用作辅助建筑材料。在某些欧洲国家/地区，对全部底灰（BA）馏分（0–32 mm）进行了洗涤处理，从而分离出更多的污染颗粒，小于0.063 mm。因此，产生了具有高水分含量并因此有限地存在可溶性物质的MWSI污泥。为了增强其作为建筑材料的性能，此处，对MSWI污泥进行了干式机械活化。此后，提供了参考BA与未处理和处理过的MSWI污泥之间的反应性比较，评估了它们在水泥存在下的行为及其火山灰活性。而且机械性能 根据EN 450对波特兰水泥（PC）的25％替代进行了评估。由于改善了颗粒的形态和堆积，机械活化在物理上增强了MSWI污泥。化学上，MSWI污泥可将PC的水合度提高≈25％。事实证明，铣削处理对存在PC时的残留物性能有利，比未处理的样品强度高32％。根据《土壤质量法令》，在环境方面，已成功验证了对不变形材料法规的遵守情况。事实证明，铣削处理对存在PC时的残留物性能有利，比未处理的样品强度高32％。根据《土壤质量法令》，在环境方面，已成功验证了对不变形材料法规的遵守情况。事实证明，铣削处理对存在PC时的残留物性能有利，比未处理的样品强度高32％。根据《土壤质量法令》，在环境方面，已成功验证了对不变形材料法规的遵守情况。