Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
In situ grouting of low-level burial trenches with a cement-based grout at Oak Ridge National Laboratory
A technology being evaluated for use in the closure of one of the low-level radwaste burial grounds at ORNL is trench stabilization using a cement-based grout. To demonstrate the applicability and effectiveness of this technology, two interconnecting trenches in SWSA 6 were selected as candidates for in situ grouting with a particulate grout. The primary objective was to demonstrate the increased trench stability (characterized by trench penetration tests) and the decreased potential for leachate migration (characterized by hydraulic conductivity tests) following in situ injection of a particulate grout into the waste trenches. Stability against trench subsidence is a critical issue. For example, construction of impermeable covers to seal the trenches will be ineffectual unless subsequent trench subsidence is permanently suspended. A grout composed of 39% Type 1 Portland cement, 55.5% Class F fly ash, and 5.5% bentonite mixed at 12.5 lb/gal of water was selected. Before the trenches were grouted, the primary characteristics relating to physical stability, hydraulic conductivity, and void volume of the trenches were determined. Their physical stability was evaluated using soil-penetration tests.
In situ grouting of low-level burial trenches with a cement-based grout at Oak Ridge National Laboratory
A technology being evaluated for use in the closure of one of the low-level radwaste burial grounds at ORNL is trench stabilization using a cement-based grout. To demonstrate the applicability and effectiveness of this technology, two interconnecting trenches in SWSA 6 were selected as candidates for in situ grouting with a particulate grout. The primary objective was to demonstrate the increased trench stability (characterized by trench penetration tests) and the decreased potential for leachate migration (characterized by hydraulic conductivity tests) following in situ injection of a particulate grout into the waste trenches. Stability against trench subsidence is a critical issue. For example, construction of impermeable covers to seal the trenches will be ineffectual unless subsequent trench subsidence is permanently suspended. A grout composed of 39% Type 1 Portland cement, 55.5% Class F fly ash, and 5.5% bentonite mixed at 12.5 lb/gal of water was selected. Before the trenches were grouted, the primary characteristics relating to physical stability, hydraulic conductivity, and void volume of the trenches were determined. Their physical stability was evaluated using soil-penetration tests.
In situ grouting of low-level burial trenches with a cement-based grout at Oak Ridge National Laboratory
C. W. Francis (Autor:in) / R. D. Spence (Autor:in) / T. Tamura (Autor:in) / B. P. Spalding (Autor:in)
1993
92 pages
Report
Keine Angabe
Englisch
Radiation Pollution & Control , Radioactive Wastes & Radioactivity , Ceramics, Refractories, & Glass , Containment Systems , Grouting , Low-Level Radioactive Wastes , Bentonite , Chemical Composition , Fly Ash , Ground Disposal , Ground Subsidence , Hydraulic Conductivity , Leaching , ORNL , Performance , Portland Cement , Radioactive Waste Facilities , Soils , Stability , EDB/052002 , EDB/540230
Grouting Rock Fractures with Cement Grout
| British Library Online Contents | 2012
Grouting Rock Fractures with Cement Grout
| Online Contents | 2012
Grouting Rock Fractures with Cement Grout
| Online Contents | 2012