Valorization of Dredged Harbor Sediments through Lightweight Aggregate Production: Application of Waste Oyster Shells

نویسندگان

چکیده

The treatment and valorization of wastes such as dredged harbor sediments oyster shells have become critical for environmental management. In order to promote waste resource sustainability, this study evaluated the feasibility using lightweight aggregate (LWA) production. effects shell content sintering temperature on sediment-based LWA properties, including particle density (PD), water absorption (WA), crushing strength (CS), were investigated. engineering applicability LWAs was also assessed. results showed that it feasible use admixed with produce suitable applications. properties highly varied according content. Remarkably, prepared a 5–15% sintered at 1125 °C structural concrete (PD: 1.73–1.83 g/cm3, WA: 12.2–15.1%, CS: 7.2–10.4 MPa). open porosity key factor affecting density, absorption, LWAs. Moreover, leachability toxic metals chloride ions in complied regulations building materials Taiwan. Waste could be an excellent additive lower optimal required

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ژورنال

عنوان ژورنال: Sustainability

سال: 2023

ISSN: ['2071-1050']

DOI: https://doi.org/10.3390/su15065466