Cement–fly ash stabilisation/solidification of contaminated soil: Performance properties and initiation of operating envelopes

  title={Cement–fly ash stabilisation/solidification of contaminated soil: Performance properties and initiation of operating envelopes},
  author={Reginald B. Kogbara and A. Al-Tabbaa and Yaolin Yi and J. Stegemann},
  journal={Applied Geochemistry},
Abstract This study was aimed at evaluating the mechanical and pH-dependent leaching performance of a mixed contaminated soil treated with a mixture of Portland cement (CEMI) and pulverised fuel ash (PFA). It also sought to develop operating envelopes, which define the range(s) of operating variables that result in acceptable performance. A real site soil with low contaminant concentrations, spiked with 3000 mg/kg each of Cd, Cu, Pb, Ni and Zn, and 10,000 mg/kg of diesel, was treated with one… Expand

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