In recent years, interest has grown in the application of NOH2O for containment of groundwater at nuclear sites in the United States and Japan. Testing on the grout involving exposure to varying doses of radiation were performed in 2014, and the maintenance of the grout’s physical properties demonstrated the grout’s very good radiation tolerance. Field experimentation on injection methods is now underway to determine optimal ways to create subsurface containment structures with NOH2O.

The goal of the research is to refine injection methods to construct effective subsurface groundwater containment structures and to seal cracks and seams in containment structures. Research continues that is relevant to addressing critical environmental needs at Hanford, Washington (USA) and Fukushima, Japan.