Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/108185
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | - |
dc.creator | Zou, F | en_US |
dc.creator | Leng, Z | en_US |
dc.creator | Tan, Z | en_US |
dc.creator | Li, D | en_US |
dc.creator | Han, M | en_US |
dc.creator | Lu, G | en_US |
dc.creator | Sreeram, A | en_US |
dc.date.accessioned | 2024-07-26T01:40:27Z | - |
dc.date.available | 2024-07-26T01:40:27Z | - |
dc.identifier.issn | 0048-9697 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/108185 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier BV | en_US |
dc.subject | Asphalt pavement | en_US |
dc.subject | Kinetic modeling | en_US |
dc.subject | Metal leaching | en_US |
dc.subject | Toxicological potential | en_US |
dc.title | Kinetics and toxicological potential of heavy metal leaching from asphalt pavements | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 912 | en_US |
dc.identifier.doi | 10.1016/j.scitotenv.2023.169193 | en_US |
dcterms.abstract | The leaching of heavy metals from asphalt pavement has attracted increasing attention due to its associated environmental risks. Comprehending the leaching process is crucial for ensuring the safe utilization of asphalt pavement. This study investigates heavy metal leaching kinetics from asphalt pavements using tank-leaching tests and dynamic simulations employing both first and second-order kinetic models. Furthermore, this study reveals the toxicological potential of heavy metal leaching from asphalt pavement by assessing its temporal metal accessibility based on the obtained kinetic attributes. Six distinct asphalt mixtures were prepared and tested, each exhibiting two different gradations. The findings demonstrated that both kinetic models effectively elucidated the leaching process. Notably, the relatively stable final leaching stages primarily adhered to first-order kinetics, while the second-order kinetics provided a superior description of the more intricate initial leaching stages. In terms of toxicological potential, the results indicated that recycled waste-incorporated asphalt pavements, specifically bottom ash-incorporated asphalt and asphalt rubber, exhibited excessive heavy metal leaching for varying durations, ranging from several days to months under specific conditions. This study has provided valuable insights into the metal leaching kinetics of asphalt pavements and their associated toxicological impact, significantly advancing the current understanding of the consequences of heavy metal leaching from asphalt pavements. | - |
dcterms.accessRights | embargoed access | en_US |
dcterms.bibliographicCitation | Science of the total environment, 20 Feb. 2024, v. 912, 169193 | en_US |
dcterms.isPartOf | Science of the total environment | en_US |
dcterms.issued | 2024-02-20 | - |
dc.identifier.scopus | 2-s2.0-85181124597 | - |
dc.identifier.eissn | 1879-1026 | en_US |
dc.identifier.artn | 169193 | en_US |
dc.description.validate | 202407 bcch | - |
dc.identifier.FolderNumber | a3090c | - |
dc.identifier.SubFormID | 49545 | - |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | Research Centre for Resources Engineering towards Carbon Neutrality (RCRE) at The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.date.embargo | 2026-02-20 | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
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