Environmental Research &Technology Division
Technology Development/Applications Group
| Installation of a Close-Coupled Subsurface Barrier at the BNL Glass Pits using Jet-Grouting with an Acrylic Polymer |
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| BNL Glass Pits Disposal Area, Operable Unit I |
Casa Grande jet-grouting rig used for barrier installation |
High pressure pump used for cement and polymer grouts |
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| The cement grout was delivered to the site pre-mixed |
The cement grout was screened and pumped to the high pressure pump |
The vertical side walls of the V-trough were placed first |
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| Angeled walls were installed at 45 degree angles |
The final cement wall was installed creating the secondary containment |
A low pressure pump was added to allow dual fluid grouting of the polymer |
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| The polymer was grouted via thin panel grouting to form a liner within the cement barrier |
Once the barrier was completed perfluorocarbon tracers were used to test the integrity (leak check) |
With confirmation that the barrier was breach free, the contents of the pit were stabilized in-situ using a cement grout |
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Participants:
AGEC, Inc.
Brookhaven Nat'l Lab.
Geochemical Corp.
MSE, Inc.
Sandia Nat'l Lab.
U.S. Dept. of Energy, EM-50
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| Spiral-wound pipes were placed into the monolith forming 4' x 4' cells.
Once the monolith was fully cured, the pipes were filled with an expansive demolition grout to crack the monolith into
individual cells. This allows for easy removal of each unit. Note four lifting eyes were placed in each unit. |
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Last Modified: November 12, 2009
Please forward all questions about this site to:
Linda Satalino
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