Performance of in-situ stabilized/solidified (S/S) contaminated site soils using cement-bearing binders under different depth

Wang, F., Shen, Z. and Jin, F. (2016) Performance of in-situ stabilized/solidified (S/S) contaminated site soils using cement-bearing binders under different depth. Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition), 46(1), pp. 105-110.

Abstract

In-situ stabilized/solidified (S/S) technique was used to treat the heavy metal and organic contaminated site soils in the Castleford, Yorkshire site. Portland cement, fly ash, magnesia and modified clays, etc. were used. The unconfined compressive strength test as well as the BS EN12457 batch leaching test were conducted on the S/S contaminated soils at 1.5 years after treatment, to assess the influences of different depth on the strength and leaching performances of S/S contaminated soils. The results show that the strengths of all these treated mixes by different binders can meet their design values of the UK; depth is not as significant as other factors on the influence of S/S contaminated site soils' strength. Moreover, except part of Ni, the leaching concentrations of Cu, Zn and Pb are able to meet their drinking water standard. By comparison of the treatment effects of different binders, modified clays are found to be able to immobilize Ni efficiently, however, they are inefficient in immobilizing organic compounds.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Jin, Dr Fei
• Authors: Wang, F., Shen, Z., and Jin, F.
• College/School: College of Science and Engineering > School of Engineering > Infrastructure and Environment
• Journal Name: Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition)
• Publisher: Southeast University
• ISSN: 1001-0505