焚化
压实
岩土工程
风化作用
底灰
环境科学
浸出(土壤学)
城市固体废物
焚烧炉底灰
废物管理
土壤水分
地质学
粉煤灰
工程类
土壤科学
地球化学
作者
Beatriz S. Bandarra,L. R. Monteiro,Gustavo Vieira Veloso,Pedro Abreu,Helena Sousa,Rui C. Martins,Joana Luísa Pereira,Palf Coelho,Margarida J. Quina
标识
DOI:10.1016/j.conbuildmat.2024.136011
摘要
Circular economy envisages resource efficiency and minimization of the negative impacts of waste on the environment and human health. This work considers municipal solid waste incineration bottom ash (IBA) for safe use in geotechnical works, through physical, chemical, ecotoxicological, and geotechnical analysis of samples with different weathering periods. Low leaching potential and no relevant ecotoxic effects were found for IBA. Better compaction was obtained for IBA mixtures with sand. All materials showed reasonable permeability after compaction. IBA stiffness and shear strength values, consistently assessed through different tests, were within dense granular soils range. Weathering seems to positively influence IBA geotechnical properties, which in any case seem compatible with environmentally safe and sustainable geotechnical applications.
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