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Dredged marine sediments stabilized/solidified with cement and GGBS: Factors affecting mechanical behaviour and leachability by Zhang, Wan-lu; Chen, Yong-hui; McCabe, Bryan A.; Zhao, Lun-yang; Morrison, Liam is a Environmental Science article available to read on EtoBox.
What is Dredged marine sediments stabilized/solidified with cement and GGBS: Factors affecting mechanical behaviour and leachability about?
Management strategies for the safe disposal of contaminated dredged marine sediment constitute a global-scale environmental issue. The stabilization/solidification method was investigated as a sustainable approach to the recycling of the sediment as a construction material. A systematic study of the factors affecting the mechanical performance and contaminant release was performed. The physico-chemical variables selected to assess the potential re-use of the sediment treated with Ordinary Portland cement (OPC) and Ground Granulated Blast Furnace Slag (GGBS) in an aquatic environment were: curing duration (7, 28, 56 and 98 days), curing temperature (5, 20 and 40 °C) and ambient (leachate) pH (1, 4, 7 and 10). Unconfined compressive strength (UCS) tests were conducted and extended-duration tank leaching tests were used to characterize the long-term leaching of Al, Cr, Mn, Fe, Ni, Cu, Zn, As, Cd, Ba, Pb. The results showed that S/S methods provide excellent immobilization of metals in marine sediment at a pH range of 4 to 10. Immobilization efficiencies of >99.9% for Mn, Fe, Zn, As, Ba, Pb and >97.8% for Al, Cu and Zn are reported over 100 days. GGBS replacement is an effective way to
Who reads Dredged marine sediments stabilized/solidified with cement and GGBS: Factors affecting mechanical behaviour and leachability?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Zhang, Wan-lu; Chen, Yong-hui; McCabe, Bryan A.; Zhao, Lun-yang; Morrison, Liam
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV; Publons (ISSN 0048-9697)
- Published
- 2020
- Language
- EN
- Field
- Environmental Science (Physical Sciences)