Waste Concentration Effects of Grout Barriersby Andrew Bodocsi, Univ of Cincinnati, Cincinnati, OH, USA,
Mark T. Bowers, Univ of Cincinnati, Cincinnati, OH, USA,
Roddy A. Sherer, Univ of Cincinnati, Cincinnati, OH, USA,
Abstract: Great concern has developed over hazardous waste sites, particularly in the leaching of the hazardous wastes into groundwater supplies. Many sites that are considered contaminated and unsafe were in operation before RCRA's stringent controls were imposed by the USEPA. Remedial measures must be employed to rectify the containment problems at such sites. The research team at the University of Cincinnati has been investigating the feasibility of grouting of soil zones under and around hazardous waste sites to create a barrier to the flow of contaminants from such sites. Research has focused on the reactivity and changes in permeability of various grouts when exposed to preselected chemical leachates. Deionized water was used to establish baseline permeabilities for the grouts used. The grouts selected for testing included acrylate, urethane, cement-bitumen, cement-bentonite with various modifiers, sodium silicate with various modifiers, and 'Penegrout'.
Subject Headings: Occupational safety | Waste sites | Grouting | Chemical wastes | Site investigation | Waste disposal | Hazardous materials
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