26 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Grouting."  
Results: 1 - 24 next
open access

Partitioning of cesium in hydrofracture grouts

Description: Phase characterization of hydrofracture grouts was accomplished with the use of optical microscopy, scanning electron microscopy, x-ray diffraction, and ..beta..-..gamma.. autoradiography. A laboratory-produced sample containing 1 wt % stable cesium and an actual hydrofracture grout sheet obtained by core dirlling were examined during this work. The phases present in these samples were identified and cesium was found to be absorbed almost entirely by illite clay agglomerates. These clay agglome… more
Date: August 31, 1983
Creator: Stinton, D.P.; McDaniel, E.W. & Weeren, H.O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Demonstration of in situ-constructed horizontal soil containment barrier at Fernald

Description: A new design of jet grouting tool that can be guided by horizontal well casings and that operates in the horizontal plane has been used for the in situ placement of grout and construction of a prototype horizontal barrier that is free of windows. Jet grouting techniques have been advanced to permit construction of horizontal barriers underneath contaminated soil without having to excavate or disturb the waste. The paper describes progress on the Fernald Environmental Restoration Management Corp… more
Date: August 1, 1994
Creator: Pettit, P. J.; Ridenour, D.; Walker, J. & Saugier, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Land containment system: Horizontal grout barrier: A method for in situ waste management

Description: The DOE has a number of sites where wastes can potentially leak into the ground and escape into the environment. Both the DOE and others are faced with a need to control a wide variety of pollutants on land: leaking underground storage tanks, unstabilized soluble wastes entering the groundwater, leachates from dump sites and other sources. Current technologies require either removal and repackaging of the waste from its existing location or, the ability to tie vertical barrier walls into an und… more
Date: August 1, 1994
Creator: Ridenour, D. E. & Saugier, R. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

BENCH SCALE SALTSTONE PROCESS DEVELOPMENT MIXING STUDY

Description: The Savannah River National Laboratory (SRNL) was requested to develop a bench scale test facility, using a mixer, transfer pump, and transfer line to determine the impact of conveying the grout through the transfer lines to the vault on grout properties. Bench scale testing focused on the effect the transfer line has on the rheological property of the grout as it was processed through the transfer line. Rheological and other physical properties of grout samples were obtained prior to and after… more
Date: August 3, 2011
Creator: Cozzi, A. & Hansen, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Diffusion and Leaching Behavior of Radionuclides in Category 3 Waste Encasement Concrete and Soil Fill Material – Summary Report

Description: One of the methods being considered for safely disposing of Category 3 low-level radioactive wastes is to encase the waste in concrete. Such concrete encasement would contain and isolate the waste packages from the hydrologic environment and would act as an intrusion barrier. The current plan for waste isolation consists of stacking low-level waste packages on a trench floor, surrounding the stacks with reinforced steel, and encasing these packages in concrete. These concrete-encased waste stac… more
Date: August 31, 2011
Creator: Mattigod, Shas V.; Wellman, Dawn M.; Bovaird, Chase C.; Parker, Kent E.; Clayton, Libby N.; Powers, Laura et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SRS tank closure. Innovative technology summary report

Description: High-level waste (HLW) tank closure technology is designed to stabilize any remaining radionuclides and hazardous constituents left in a tank after bulk waste removal. Two Savannah River Site (SRS) HLW tanks were closed after cleansing and then filling each tank with three layers of grout. The first layer consists of a chemically reducing grout. The fill material has chemical properties that retard the movement of some radionuclides and chemical constituents. A layer of controlled low-strength … more
Date: August 1, 1999
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SALTSTONE 4QCY08 TCLP RESULTS

Description: The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the fourth quarter of the 2008 calendar year (4QCY08), Tank 50 accepted transfers of approximately 15 kgal from the Effluent Treatment Project (ETP) waste, approximately 12 kgal from Tank 710-the H-Canyon General Purpose Evaporator, approximately 5 kgal from the H-Canyon Super Kukla campaign, and approximately 34 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hol… more
Date: August 10, 2009
Creator: Cozzi, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

GROUT HOPPER MODELING STUDY

Description: The Saltstone facility has a grout hopper tank to provide agitator stirring of the Saltstone feed materials. The tank has about 300 gallon capacity to provide a larger working volume for the grout slurry to be held in case of a process upset, and it is equipped with a mechanical agitator, which is intended to keep the grout in motion and agitated so that it won't start to set up. The dry feeds and the salt solution are already mixed in the mixer prior to being transferred to the hopper tank. Th… more
Date: August 30, 2011
Creator: Lee, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SALTSTONE VARIABILITY STUDY - MEASUREMENT OF POROSITY

Description: One of the goals of the Saltstone Variability Study is to identify the operational and compositional variables that control or influence the important processing and performance properties of Saltstone mixes. One of the key performance properties is porosity which is a measure of the volume percent of a cured grout that is occupied by salt solution (for the saturated case). This report presents (1) the results of efforts to develop a method for the measurement of porosity of grout samples and (… more
Date: August 23, 2007
Creator: Harbour, J; Vickie Williams, V; Tommy Edwards, T; Russell Eibling, R & Ray Schumacher, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DATA QUALITY OBJECTIVE SUMMARY REPORT FOR THE 105 K EAST ION EXCHANGE COLUMN MONOLITH

Description: The 105-K East (KE) Basin Ion Exchange Column (IXC) cells, lead caves, and the surrounding vault are to be removed as necessary components in implementing ''Hanford Federal Facility Agreement and Consent Order'' (Ecology et al. 2003) milestone M-034-32 (Complete Removal of the K East Basin Structure). The IXCs consist of six units located in the KE Basin, three in operating positions in cells and three stored in a lead cave. Methods to remove the IXCs from the KE Basin were evaluated in KBC-283… more
Date: August 2, 2007
Creator: JOCHEN, R.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

REFERENCE CASES FOR USE IN THE CEMENTITOUS PARTNERSHIP PROJECT

Description: The Cementitious Barriers Partnership Project (CBP) is a multi-disciplinary, multi-institution cross cutting collaborative effort supported by the US Department of Energy (DOE) to develop a reasonable and credible set of tools to improve understanding and prediction of the structural, hydraulic and chemical performance of cementitious barriers used in nuclear applications. The period of performance is >100 years for operating facilities and > 1000 years for waste management. The CBP has d… more
Date: August 31, 2010
Creator: Langton, C.; Kosson, D. & Garrabrants, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CONSIDERATIONS FOR GROUT FORMULATIONS FOR FACILITY CLOSURES USING IN SITU STRATEGIES

Description: The U.S. Department of Energy (DOE) is conducting in situ closures (entombment) at a large number of facilities throughout the complex. Among the largest closure actions currently underway are the closures of the P and R Reactors at the Savannah River Site (SRS), near Aiken, South Carolina. In these facilities, subgrade open spaces are being stabilized with grout; this ensures the long term structural integrity of the facilities and permanently immobilizes and isolates residual contamination. T… more
Date: August 25, 2010
Creator: Gladden, J.; Serrato, M.; Langton, C.; Long, T.; Blankenship, J.; Hannah, G. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Preliminary Criticality Safety Evaluation for In Situ Grouting in the Subsurface Disposal Area

Description: A preliminary criticality safety evaluation is presented for in situ grouting in the Subsurface Disposal Area (SDA) at the Idaho National Engineering Laboratory. The grouting materials evaluated are cement and paraffin. The evaluation determines physical and administrative controls necessary to preclude criticality and identifies additional information required for a final criticality safety evaluation. The evaluation shows that there are no criticality concerns with cementitious grout but a ne… more
Date: August 31, 2000
Creator: Slate, L.J. & Taylor, J.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Grout for closure of the demonstration vault at the US DOE Hanford Facility. Final report

Description: The Waterways Experiment Station (WES) developed a grout to be used as a cold- (nonradioactive) cap or void-fill grout between the solidified low-level waste and the cover blocks of a demonstration vault for disposal of phosphate-sulfate waste (PSW) at the US Department of Energy (DOE) Hanford Facility. The project consisted of formulation and evaluation of candidate grouts and selection of the best candidate grout, followed by a physical scale-model test to verify grout performance under proje… more
Date: August 1, 1992
Creator: Wakeley, Lillian D. & Ernzen, James J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ANALYSIS OF THE TANK 5F FINAL CHARACTERIZATION SAMPLES-2011

Description: The Savannah River National Laboratory (SRNL) was requested by SRR to provide sample preparation and analysis of the Tank 5F final characterization samples to determine the residual tank inventory prior to grouting. Two types of samples were collected and delivered to SRNL: floor samples across the tank and subsurface samples from mounds near risers 1 and 5 of Tank 5F. These samples were taken from Tank 5F between January and March 2011. These samples from individual locations in the tank (nine… more
Date: August 3, 2012
Creator: Oji, L.; Diprete, D.; Coleman, C. & Hay, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Maintenance Implementation Plan for the Grout Facility

Description: The objective of the Maintenance Implementation Plan (MIP) is to describe how the Grout Treatment Facility will implement the requirements established by US Department of Energy (DOE) Order 4330.4A, Maintenance Management Program, Chapter 2.0 Nuclear Facilities (DOE 1990). The plan provides a blueprint for a disciplined approach to implementation and compliance. Each element of the order is prioritized, categorized, and then placed into one of three phases for implementation.
Date: August 1, 1993
Creator: Yoakum, A. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Estimating emissions from grout pouring operations

Description: Grouting is a method for disposal of low-level radioactive waste in which a contaminated solution is mixed into a slurry, poured into a large storage vault, then dried, fixing the contaminants within a stable solid matrix. A model (RELEASE) has been developed to estimate the quantity of aeorsol created during the pouring process. Information and equations derived from spill experiments were used in the model to determine release fractions. This paper discusses the derivation of the release frac… more
Date: August 1, 1993
Creator: Ballinger, M. Y. & Hendrickson, D. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Final Report - Gas Generation Testing of Uranium Metal in Simulated K Basin Sludge and in Grouted Sludge Waste Forms

Description: The Waste Isolation Pilot Plant (WIPP) is being considered for the disposal of K Basin sludge as RH-TRU. Because the hydrogen gas concentration in the 55-gallon RH-TRU sealed drums to be transported to WIPP is limited by flammability safety, the number of containers and shipments likely will be driven by the rate of hydrogen generated by the uranium metal-water reaction (U + 2 H{sub 2}O {yields} UO{sub 2} + 2 H{sub 2}) in combination with the hydrogen generated from water and organic radiolysis… more
Date: August 19, 2004
Creator: Delegard, Calvin H.; Schmidt, Andrew J.; Sell, Rachel L.; Sinkov, Sergei I.; Bryan, Samuel A.; Gano, Sue et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal denitration and mineralization of waste constituents

Description: In order to produce a quality grout from LLW using hydraulic cements, proper conditioning of the waste is essential for complete cement curing. Several technologies were investigated as options for conditions. Since the LLW is dilute, removal of all, or most, of the water will significantly reduce the final waste volume. Neutralization of the LLW is also desirable since acidic liquids to not allow cement to cure properly. The nitrate compounds are very soluble and easily leached from solid wast… more
Date: August 1, 1997
Creator: Nenni, Joseph A. & Boardman, Richard D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hanford Federal Facility Agreement and Consent Order Quarterly Progress Report for the Period Ending June 30, 1991

Description: This is the ninth quarterly report as required by the Hanford Federal Facility Agreement and Consent Order (Ecology et al. 1990), also known as the Tri-Party Agreement, established between the US Department of Energy (DOE), the US Environmental Protection Agency (EPA), and the Washington State Department of Ecology (Ecology). The Tri-Party Agreement sets the plan and schedule for achieving regulatory compliance and cleanup of waste sites at the Hanford Site. This report covers progress for the … more
Date: August 1, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A field test of a waste containment technology using a new generation of injectable barrier liquids

Description: A first stage field injection of a new generation of barrier liquids was successfully completed. Two types of barrier liquids, colloidal silica (CS) and polysiloxane (PSX), were injected into heterogeneous unsaturated deposits of sand, silt, and gravel typical of many of the arid DOE cleanup sites and particularly analogous to the conditions of the Hanford Site. Successful injection by commercially available chemical grouting equipment and the tube-a-manchette technique was demonstrated. Excava… more
Date: August 1, 1996
Creator: Moridis, G.; Apps, J.; Persoff, P.; Myer, L.; Muller, S.; Pruess, K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Quality assurance plan for placement of cold-cap grout, demonstration vault, Hanford Grout Vault Program. Final report

Description: During FY 91, the U.S. Army Engineer Waterways Experiment Station (WES) developed a grout to be used as a cold cap, a nonradioactive layer, between the solidified waste and the cover blocks of a demonstration waste disposal vault at the U.S. Department of Energy Hanford Facility. This document recommends requirements for a quality assurance (QA) plan for field mixing and placing of the cold-cap grout during final closure of the demonstration vault. Preplacement activities emphasize selection an… more
Date: August 1, 1992
Creator: Harrington, P. T.; Wakeley, L. D.; Ernzen, J. J. & Walley, D. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Geothermal heat pump grouting materials

Description: The thermal conductivity of cementitious grouts has been investigated in order to determine suitability of these materials for grouting vertical boreholes used with geothermal heat pumps. The roles of mix variables such as water/cement ratio, sand/cement ratio and superplasticizer dosage were measured. The cement-sand grouts were also tested for rheological characteristics, bleeding, permeability, bond to HDPE pipe, shrinkage, coefficient of thermal expansion, exotherm, durability and environme… more
Date: August 1, 1998
Creator: Allan, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen