Evaluation of two new grouts for constructing subsurface barriers
- Golder Federal Services, Inc., Redmond, WA (United States)
- Sandia National Labs., Albuquerque, NM (United States)
This paper presents the results of laboratory and field tests to evaluate two new grout materials for creating low-permeability barriers in unconsolidated soils. The grout materials of interest are a particulate grout developed in Germany, consisting of a naturally occurring wax (montan wax), water, and bentonite, and a glyoxal-modified sodium silicate chemical grout developed in France. The test program assesses the suitability of the grout for creating subsurface containment barriers in contaminated soils over a range of soil and contaminant conditions. Laboratory activities are described that evaluated permeability reductions achieved by grout placement within a range of soil types and assessed the compatibility of the grouts with a variety of waste forms. A series of single-borehole injection tests are described that were conducted at the Mixed Waste Landfill Integration Demonstration site at Sandia National Laboratories to evaluate the grout performance and permeation distances under field-scale conditions. Injection and monitoring methods are described, and the results of the single-borehole tests are reviewed.
- OSTI ID:
- 400691
- Report Number(s):
- CONF-941124--; ISBN 0-935470-85-9
- Country of Publication:
- United States
- Language:
- English
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