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Grout to meet physical and chemical requirements for closure at Hanford grout vaults. Final report

Description: The US Army Engineer Waterways Experiment Station (WES) developed a grout based on portland cement, Class F fly ash, and bentonite clay, for the Hanford Grout Vault Program. The purpose of this grout was to fill the void between a wasteform containing 106-AN waste and the vault cover blocks. Following a successful grout development program, heat output, volume change, and compressive strength were monitored with time in simulated repository conditions and in full-depth physical models. This res… more
Date: July 21, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Grout Facilities Standby Plan

Description: This plan defines how the Grout Facilities will be deactivated to meet the intent of the recently renegotiated Tri-Party Agreement (TPA). The TPA calls for the use of the grout process as an emergency option only in the event that tank space is not available to resolve tank safety issues. The availability of new tanks is expected by 1997. Since a grout startup effort would take an estimated two years, a complete termination of the Grout Disposal Program is expected in December 1995. The former … more
Date: September 29, 1994
Creator: Claghorn, R. D.; Kison, P. F.; Nunamaker, D. R. & Yoakum, A. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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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
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Disposal of fluidized-bed combustion ash in an underground mine to control acid mine drainage and subsidence. Quarterly report, February--May 1994

Description: During Phase I (first 18 months) the project is segregated into four areas of reporting: (A) Grout Formulation, (B) Grout Characterization, (C) Water Quality Monitoring, (D) Subsidence Control & Contaminant Transport. The first component involves formulating a grout mixture with appropriate flowability to be used in filling complex mine voids. The Grout Characterization component involves background monitoring of water quality and precipitation at the Phase III (Longridge) mine site. This repor… more
Date: June 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Liquid return from gas pressurization of grouted waste

Description: The ability to force pore liquids out of a simulated waste grout matrix using air pressure was measured. Specimens cured under various conditions were placed in a permeameter and subjected to increasing air pressure. The pressure was held constant for 24 hours and then stepped up until either liquid was released or 150 psi was reached. One specimen was taken to 190 psi with no liquid release. Permeability to simulated tank waste was then measured. Compressive strength was measured following the… more
Date: May 1, 1994
Creator: Powell, W. J. & Benny, H. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Gas generation from Hanford grout samples. Final report

Description: The radiolytic yields of H{sub 2}, N{sub 2}, O{sub 2}, N{sub 2}O, and CO from two batches of WHC-supplied samples of grouted simulated waste have been {gamma} irradiated at several dose rates (0.025, 0.63 and 130 krad/h for H{sub 2} and 130 krad/h for all other gases). In one batch, the liquid waste simulant that was added to the grout included the original components that were added to Tank 102-AP (labeled ``virgin``waste.) The second batch included a similar liquid waste simulant that was pre… more
Date: March 1, 1994
Creator: Jonah, C. D.; Kapoor, S.: Matheson, M. S.; Mulac, W. A. & Meisel, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waste Receiving and Processing Facility Module 2A: Advanced Conceptual Design Report. Volume 3A

Description: Objective of this document is to provide descriptions of all WRAP 2A feed streams, including physical and chemical attributes, and describe the pathway that was used to select data for volume estimates. WRAP 2A is being designed for nonthermal treatment of contact-handled mixed low-level waste Category 1 and 3. It is based on immobilization and encapsulation treatment using grout or polymer.
Date: March 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aqueous nitrate waste treatment: Technology comparison, cost/benefit, and market analysis

Description: The purpose of this analysis is to provide information necessary for the Department of Energy (DOE) to evaluate the practical utility of the Nitrate to Ammonia and Ceramic or Glass (NAC/NAG/NAX) process, which is under development in the Oak Ridge National Laboratory. The NAC/NACx/NAX process can convert aqueous radioactive nitrate-laden waste to a glass, ceramic, or grout solid waste form. The tasks include, but are not limited to, the following: Identify current commercial technologies to mee… more
Date: January 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of annual exposure for grout operations

Description: An analysis is presented of the direct radiation exposures and dose rates to personnel from assumed quantities of radioactive grout, and Double Shell Tank (DST) waste feed. This analysis was based on filling four disposal vaults per year. Whole body doses were analyzed for occupational workers assigned to the Grout Treatment Facility (GTF). The study makes assumptions that must be met by the facility. Otherwise, the GTF will meet all DOE and WHC direct radiation exposure criteria. This analysis… more
Date: February 3, 1994
Creator: Potter, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

REGAL model of gas and liquid migration from grout containing radioactive waste

Description: A concern for hydrogen and flammable gas generation in the Hanford Site grout radioactive waste disposal facility led to the development of the REGAL model. This model predicts buildup of radiolytically formed gases in the grout region and their migration to air-filled regions surrounding the grout. The REGAL model is a three-dimensional finite difference code that couples models of gas diffusion, two-phase gas and liquid flow, liquid evaporation and condensation, and heat transfer. Final preli… more
Date: January 1, 1994
Creator: Roblyer, S. P.; Finfrock, S. H.; Ritter, G. A. & Schwinkendorf, K. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

In-situ containment and stabilization of buried waste: Annual report FY 1994

Description: The two landfills of specific interest are the Chemical Waste Landfill (CWL) and the Mixed Waste Landfill (MWL), both located at Sandia National Laboratory. The work is comprised of two subtasks: (1) In-Situ Barriers and (2) In-Situ Stabilization of Contaminated Soils. The main environmental concern at the CWL is a chromium plume resulting from disposal of chromic acid and chromic sulfuric acid into unlined pits. This program has investigated means of in-situ stabilization of chromium contamina… more
Date: October 1, 1994
Creator: Allan, M. L. & Kukacka, L. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A TOUGH2 equation-of-state module for the simulation of two-phase flow of air, water, and a miscible gelling liquid

Description: The injection of grout into the subsurface can be used to encapsulate contaminated regions of an aquifer, or to form underground barriers for the isolation of contaminant sources and to prevent the spreading of existing plumes. This requires identifying grouts, or barrier fluids, which when injected into the subsurface exhibit a large increase in viscosity and eventually solidify, sealing the permeable zones in the aquifer. Simulation and modeling analysis are indispensable tools for designing … more
Date: May 1, 1994
Creator: Finsterle, S.; Moridis, G. J. & Pruess, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Non-destructive examination of grouted waste

Description: This data report contains the results of ultrasonic pulse velocity (UPV) and unconfined compressive strength (USC) measurements on a grouted simulant of 106AN tank waste. This testing program was conducted according to the requirements detailed in WHC-1993a. If successful, these methods could lead to a system for the remote verification of waste form quality. The objectives of this testing program were: to determine if a relationship exists between the velocity of ultrasonic compression waves a… more
Date: November 18, 1994
Creator: Benny, H. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Waste receiving and processing module 2A mixing tests status report

Description: The purpose of this report is to document the Phase II test conditions, observations, and results of this work. This report provides additional mixing performance test data and rheologic data that provide further indications that there are clear and distinct advantages in the preliminary choice of high-shear mixing alone, and high-shear dispersion in combination with, or followed by, a low-speed type mixer/stirrer for WRAP 2A facility design. Another objective was to determine if significant sc… more
Date: November 18, 1994
Creator: Weber, J. R. & Hull, K. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Feasibility of permeation grouting for constructing subsurface barriers

Description: Efforts are being made to devise technologies that provide interim containment of waste sites while final remediation alternatives are developed. Permeation grouting, a technique used extensively in the civil and mining engineering industry has been investigated as a method for emplacing a subsurface containment barrier beneath existing waste sites. Conceptually an underlying barrier is placed by injecting grout into the formation at less than fracturing pressure from a series of directionally … more
Date: April 1, 1994
Creator: Dwyer, B. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

G3 model of gas and liquid migration from grout containing radioactive waste

Description: Grout has been evaluated as a means of containing low-level radioactive waste for long-term disposal. Concerns about hydrogen and reactive gas generation in the Hanford Site grout disposal facility lead to the development of the G3 model, which has predicted buildup of radiolytically formed gases in the grout region and their migration to air-filled regions. The G3 model is a one-dimensional code that couples models of gas diffusion with two-phase gas and liquid flow. It was coupled to a compar… more
Date: November 1, 1994
Creator: Roblyer, S. P.; Finfrock, S. H. & Powell, W. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Gas Generation from Hanford Grout Samples : Final Report

Description: The radiolytic yields of hydrogen nitrogen, oxygen, nitrous oxide, and carbon monoxide from two batches of WHC-supplied samples of grouted simulated waste have been (gamma) irradiated at several dose rates (0.025, 0.63 and 130 krad/h for hydrogen and 130 krad/h for all other gases). In one batch, the liquid waste simulant that was added to the grout included the original components that were added to Tank 102-AP (labeled "virgin" waste.) The second batch included a similar liquid waste simulant… more
Date: March 1994
Creator: Jonah, Charles D.; Kapoor, S.; Matheson, Max S.; Mulac, W. A. & Meisel, Dan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance assessment of grouted double-shell tank waste disposal at Hanford. Revision 1

Description: This document assesses the performance of the Grout Disposal Facility after closure. The facility and disposal environment are modeled to predict the long-term impacts of the disposal action. The document concludes that the disposal system provides reasonable assurance that doses to the public will remain within the performance objectives. This document is required for DOC Order 5820.2A.
Date: September 1, 1994
Creator: Shade, J. W., Kincaid, C.T.; Whyatt, G. A.; Rhoads, K.; Westsik, J. H. Jr.; Freshley, M. D.; Blanchard, K. A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance of cement-based seal-system components in a waste-disposal environment

Description: A grout based on portland cement, Class F fly ash, and bentonite clay was developed as part of the closure system of shallow subsurface structures for disposal of low-activity radioactive wastes. Heat output, volume change, and compressive strength of the sealing grout were monitored with time, at elevated temperature, and in physical models, to determine if this closure grout could maintain adequate volume stability and other required physical properties in the internal environment of the disp… more
Date: December 31, 1994
Creator: Malone, Philip G.; Wakeley, Lillian D.; Burkes, J. Pete & McDaniel, Earl W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Laboratory evaluation of performance and durability of polymer grouts for subsurface hydraulic/diffusion barriers. Informal report, October 1993--May 1994

Description: Contaminated soils, buried waste and leaking underground storage tanks pose a threat to the environment through contaminant transport. One of the options for control of contaminant migration from buried waste sites is the construction of a subsurface barrier. Subsurface barriers increase the performance of waste disposal sites by providing a low permeability layer that can reduce percolation water migration into the waste site, minimize surface transport of contaminants, and reduce migration of… more
Date: May 1, 1994
Creator: Heiser, J. H. & Milian, L. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Physical barriers formed from gelling liquids: 1. numerical design of laboratory and field experiments

Description: The emplacement of liquids under controlled viscosity conditions is investigated by means of numerical simulations. Design calculations are performed for a laboratory experiment on a decimeter scale, and a field experiment on a meter scale. The purpose of the laboratory experiment is to study the behavior of multiple gout plumes when injected in a porous medium. The calculations for the field trial aim at designing a grout injection test from a vertical well in order to create a grout plume of … more
Date: January 1, 1994
Creator: Finsterle, S.; Moridis, G.J.; Pruess, K. & Persoff, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Decontamination systems information and research program -- Literature review in support of development of standard test protocols and barrier design models for in situ formed barriers project

Description: The US Department of Energy is responsible for approximately 3,000 sites in which contaminants such as carbon tetrachloride, trichlorethylene, perchlorethylene, non-volatile and soluble organic and insoluble organics (PCBs and pesticides) are encountered. In specific areas of these sites radioactive contaminants are stored in underground storage tanks which were originally designed and constructed with a 30-year projected life. Many of these tanks are now 10 years beyond the design life and fai… more
Date: December 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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