skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Grout Placement and Property Evaluation for Closing Hanford High-Level Waste Tanks - Scale-Up Testing

Abstract

Hanford has 149 single-shell high level waste (HLW) tanks that were constructed between 1943 and 1964. Many of these tanks have leaked or are suspected of leaking HLW into the soil above the ground water. Consequently, a major effort is ongoing to transfer the liquid portion of the waste to the 28 newer, double-shell tanks. Savannah River National Laboratory (SRNL) was tasked to develop grout formulations for the three-layer closure concept selected by CH2M HILL for closing Tank C-106. These grout formulations were also evaluated for use as fill materials in the next six tanks scheduled to be closed. The overall scope consisted of both bench-scale testing to confirm mix designs and scale-up testing to confirm placement properties. This report provides results of the scale-up testing for the three-phase tank closure strategy. It also contains information on grouts for equipment and riser filling. The three-phase fill strategy is summarized as follows: Phase I fill encapsulates and minimizes dispersion of the residual waste in the tank. This fill is referred to as the Stabilization Layer and consists of the Stabilization Grout. The Phase II fill provides structural stability to the tank system and prevents subsidence. It is referred to as themore » Structural Layer and consists of the Structural Grout. A final Phase III fill consists of a grout designed to provide protection against intrusion and is referred to as the Capping Layer or Capping Grout.« less

Authors:
Publication Date:
Research Org.:
Savannah River Site (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
828689
Report Number(s):
WSRC-TR-2003-00556
TRN: US0404084
DOE Contract Number:  
AC09-96SR18500
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 15 Dec 2003
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CLOSURES; EVALUATION; GROUND WATER; GROUTING; SAVANNAH RIVER PLANT; SOILS; STABILITY; STABILIZATION; TANKS; TESTING; WASTES; TANK CLOSURE; HANFORD ACCELERATED TANK CLOSURE DEMONSTRATION (ATCD); HANFORD GROUT

Citation Formats

LANGTON, CHRISTINE. Grout Placement and Property Evaluation for Closing Hanford High-Level Waste Tanks - Scale-Up Testing. United States: N. p., 2003. Web. doi:10.2172/828689.
LANGTON, CHRISTINE. Grout Placement and Property Evaluation for Closing Hanford High-Level Waste Tanks - Scale-Up Testing. United States. doi:10.2172/828689.
LANGTON, CHRISTINE. Mon . "Grout Placement and Property Evaluation for Closing Hanford High-Level Waste Tanks - Scale-Up Testing". United States. doi:10.2172/828689. https://www.osti.gov/servlets/purl/828689.
@article{osti_828689,
title = {Grout Placement and Property Evaluation for Closing Hanford High-Level Waste Tanks - Scale-Up Testing},
author = {LANGTON, CHRISTINE},
abstractNote = {Hanford has 149 single-shell high level waste (HLW) tanks that were constructed between 1943 and 1964. Many of these tanks have leaked or are suspected of leaking HLW into the soil above the ground water. Consequently, a major effort is ongoing to transfer the liquid portion of the waste to the 28 newer, double-shell tanks. Savannah River National Laboratory (SRNL) was tasked to develop grout formulations for the three-layer closure concept selected by CH2M HILL for closing Tank C-106. These grout formulations were also evaluated for use as fill materials in the next six tanks scheduled to be closed. The overall scope consisted of both bench-scale testing to confirm mix designs and scale-up testing to confirm placement properties. This report provides results of the scale-up testing for the three-phase tank closure strategy. It also contains information on grouts for equipment and riser filling. The three-phase fill strategy is summarized as follows: Phase I fill encapsulates and minimizes dispersion of the residual waste in the tank. This fill is referred to as the Stabilization Layer and consists of the Stabilization Grout. The Phase II fill provides structural stability to the tank system and prevents subsidence. It is referred to as the Structural Layer and consists of the Structural Grout. A final Phase III fill consists of a grout designed to provide protection against intrusion and is referred to as the Capping Layer or Capping Grout.},
doi = {10.2172/828689},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2003},
month = {Mon Dec 15 00:00:00 EST 2003}
}

Technical Report:

Save / Share: