Leaching of different elements from subbase layers of alternative aggregates in pavement constructions
(2006) In Journal of Hazardous Materials 137(1). p.603-611- Abstract
- The objective of this study was to analyze the accumulated effects of leaching in two test roads were municipal solid waste incineration (MSWI) bottom ash and aggregate from a railway embankment, respectively, were used as subbase aggregates. Solid samples from the subbase and the subgrade were collected in trenches, which were excavated perpendicular to the road extension. The samples were analyzed with respect to pH, water content, electrical conductivity and extractable fractions of macro and trace constituents. To conclude, spatial distribution patterns of different constituents in subbase and subgrade layers confirms the existence of two major transport processes in a road with permeable shoulders: diffusion underneath surface asphalt... (More)
- The objective of this study was to analyze the accumulated effects of leaching in two test roads were municipal solid waste incineration (MSWI) bottom ash and aggregate from a railway embankment, respectively, were used as subbase aggregates. Solid samples from the subbase and the subgrade were collected in trenches, which were excavated perpendicular to the road extension. The samples were analyzed with respect to pH, water content, electrical conductivity and extractable fractions of macro and trace constituents. To conclude, spatial distribution patterns of different constituents in subbase and subgrade layers confirms the existence of two major transport processes in a road with permeable shoulders: diffusion underneath surface asphalt layers driven by a concentration gradient directed horizontally towards the shoulder of the road where the dissolved elements are carried away by advection. (c) 2006 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/393038
- author
- Flyhammar, Peter LU and Bendz, David LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- advection, diffusion, shoulder, transport processes, asphalt pavement
- in
- Journal of Hazardous Materials
- volume
- 137
- issue
- 1
- pages
- 603 - 611
- publisher
- Elsevier
- external identifiers
-
- wos:000240581300074
- scopus:33747774198
- pmid:16762498
- ISSN
- 1873-3336
- DOI
- 10.1016/j.jhazmat.2006.02.072
- language
- English
- LU publication?
- yes
- id
- a32367fa-e331-471b-96ac-ea62ff97ce27 (old id 393038)
- date added to LUP
- 2016-04-01 12:04:57
- date last changed
- 2022-02-26 01:35:27
@article{a32367fa-e331-471b-96ac-ea62ff97ce27,
abstract = {{The objective of this study was to analyze the accumulated effects of leaching in two test roads were municipal solid waste incineration (MSWI) bottom ash and aggregate from a railway embankment, respectively, were used as subbase aggregates. Solid samples from the subbase and the subgrade were collected in trenches, which were excavated perpendicular to the road extension. The samples were analyzed with respect to pH, water content, electrical conductivity and extractable fractions of macro and trace constituents. To conclude, spatial distribution patterns of different constituents in subbase and subgrade layers confirms the existence of two major transport processes in a road with permeable shoulders: diffusion underneath surface asphalt layers driven by a concentration gradient directed horizontally towards the shoulder of the road where the dissolved elements are carried away by advection. (c) 2006 Elsevier B.V. All rights reserved.}},
author = {{Flyhammar, Peter and Bendz, David}},
issn = {{1873-3336}},
keywords = {{advection; diffusion; shoulder; transport processes; asphalt pavement}},
language = {{eng}},
number = {{1}},
pages = {{603--611}},
publisher = {{Elsevier}},
series = {{Journal of Hazardous Materials}},
title = {{Leaching of different elements from subbase layers of alternative aggregates in pavement constructions}},
url = {{http://dx.doi.org/10.1016/j.jhazmat.2006.02.072}},
doi = {{10.1016/j.jhazmat.2006.02.072}},
volume = {{137}},
year = {{2006}},
}