Field site leaching from recycled concrete aggregates applied as sub-base material in road construction

The Science of the Total Environment
Christian J EngelsenGordana Petkovic

Abstract

The release of major and trace elements from recycled concrete aggregates used in an asphalt covered road sub-base has been monitored for more than 4 years. A similar test field without an asphalt cover, directly exposed to air and rain, and an asphalt covered reference field with natural aggregates in the sub-base were also included in the study. It was found that the pH of the infiltration water from the road sub-base with asphalt covered concrete aggregates decreased from 12.6 to below pH 10 after 2.5 years of exposure, whereas this pH was reached within only one year for the uncovered field. Vertical temperature profiles established for the sub-base, could explain the measured infiltration during parts of the winter season. When the release of major and trace elements as function of field pH was compared with pH dependent release data measured in the laboratory, some similar pH trends were found. The field concentrations of Cd, Ni, Pb and Zn were found to be low throughout the monitoring period. During two of the winter seasons, a concentration increase of Cr and Mo was observed, possibly due to the use of de-icing salt. The concentrations of the trace constituents did not exceed Norwegian acceptance criteria for ground wat...Continue Reading

References

May 10, 2003·The Science of the Total Environment·Kaarle KupiainenMika Räisänen
Jan 16, 2004·Water Research·Mattias BäckströmBo Lind
Apr 7, 2007·Water Science and Technology : a Journal of the International Association on Water Pollution Research·P N M SchipperL Vergouwen
Oct 4, 2007·The Science of the Total Environment·Maria IzquierdoAngel López-Soler
Jul 17, 2009·Journal of Environmental Management·Masoud KayhanianJohn Harvey
Sep 8, 2009·The Science of the Total Environment·D François, K Pierson
Jun 16, 2010·The Science of the Total Environment·Sondre MelandBrit Salbu

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Citations

Aug 13, 2014·Journal of Hazardous Materials·D MombelliE Garcia-Diaz
Jun 10, 2014·Journal of Hazardous Materials·Stefania ButeraThomas F Astrup
Aug 3, 2016·Environmental Science and Pollution Research International·Aiyoub AbbaspourBora Cetin
Dec 20, 2017·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Matt KlugeTimothy G Townsend
Mar 20, 2018·Environmental Science and Pollution Research International·Antonio López-UcedaAdolfo Peña
Oct 6, 2020·Journal of Environmental Quality·Jiannan ChenMatthew Ginder-Vogel
Mar 22, 2016·Environmental Science and Pollution Research International·Janile O BestgenBurak F Tanyu
May 8, 2020·Materials·Luis Juli-GándaraEvelio Teijón-López-Zuazo

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