Abstract
Abstract Municipal waste incineration (MSWI) is a widely used method in solid waste treatment that can reduce the generation of landfill waste. Meanwhile, MSWI-bottom ash (BA) can be employed as a substitute for aggregates in asphalt mixtures. This study aims to assess the feasibility and influence of MSWI-BA substitution for natural limestone aggregates in asphalt mixtures to reduce garbage accumulation and save natural resources. Through conventional methods, the energy dispersive X-ray spectrometer, and scanning electron microscope experiments, the physical and chemical features of MSWI-BA and natural limestone aggregate were analyzed. A Marshall mix design determined the optimum asphalt content of asphalt mixtures with various MSWI-BA contents. The road performances of asphalt mixtures with different MSWI-BA contents were studied using rutting, low-temperature splitting, freeze–thaw splitting, and Marshall immersion tests. The experiment results show that adding MSWI-BA to asphalt mixtures would decrease water stability. High-temperature stability is excellent when adding 10 % MSWI-BA, and low-temperature crack resistance is best at 20 % MSWI-BA content. MSWI-BA could be recycled in the asphalt pavement, and 10 % is recommended.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
