Immobilisation of contaminated soil using ordinary Portland cement and Hydrofoam
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Published:2001
E. M. Bennett, A. Al-Tabbaa, 2001. "Immobilisation of contaminated soil using ordinary Portland cement and Hydrofoam", Geoenvironmental Engineering: Geoenvironmental Impact Management: Proceedings of the third conference organized by the British Geotechnical Association and Cardiff School of Engineering, Cardiff University, and held in Edinburgh on 17–19 September 2001, R. N. Yong, H. R. Thomas
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The effectiveness of ordinary portland cement (OPC) and a cementitious foam, Hydrofoam (HFR), in the immobilisation of a contaminated sand was investigated. The sand contained two contaminants: an inorganic contaminant, copper sulphate and an organic contaminant, vegetable oil. The effect of the addition of pulverised fuel ash (pfa) to the cements was also considered. The immobilisation effectiveness was assessed using unconfined compressive strength and leachability tests. It was concluded that the contaminants had a stronger retardation effect on the early strength development of OPC-based mixes than on HFR-based mixes. However, the OPC-based mixes retained a greater percentage of both the copper and the vegetable oil.
ABSTRACT
INTRODUCTION
MATERIALS
EXPERIMENTAL PROCEDURE
RESULTS AND DISCUSSION
CONCLUSIONS
ACKNOWLEDGEMENT
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