Formulation studies and grout development for fixation of variable phosphate/sulfate waste, Milestone 195

Technical Report · Mon Feb 01 04:00:00 EST 1988

DOI:https://doi.org/10.2172/5196817· OSTI ID:5196817

Sams, T. L.; McDaniel, E. W.; Tallent, O. K.; Francis, C. L.; Washburn, F. A.

The objective of this work was to develop a range of cement-based blended dry solids which, when mixed with variable phosphate/sulfate waste (PSW), produce grouts that are processible in the Rockwell Hanford Operations (RHO) Transportable Grout Facility (TGF). The selected formula(s) will also utilize commerically available materials requiring no custom processing and meet all criteria as identified and quantified by RHO, not only for grouts made with the reference formula, but also for those grouts made with reasonable deviations from the reference formula expected during routine TGF operation. This report presents experimental data for processibility and solid performance as well as graphical representations of the data. Based upon the results of the preliminary study, several grout formulas were found that produced acceptable grouts. One such formula, composed of Type III Portland cement (50 wt%), class F fly ash (28 wt%), Attapulgite-150 clay (14 wt%), and Indian red pottery clay (IRPC) (8 wt%), produced acceptable grouts with several of the waste concentrations studied. When mixed with 100% sulfate waste, this blend produced acceptable grouts at mix ratios of 8, 8.5, and 9 lb/gal. This particular blend also produced acceptable grouts at waste concentrations of 25/75 and 75/25 PSW. 12 refs., 27 figs., 13 tabs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5196817
• Report Number(s): ORNL/TM-10291/R1; ON: DE88007865
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
AEROSOL WASTES
ASHES
BUILDING MATERIALS
CEMENTS
CLAYS
COMPARATIVE EVALUATIONS
FLY ASH
GROUTING
HANFORD RESERVATION
LIQUID WASTES
LOW-LEVEL RADIOACTIVE WASTES
MANAGEMENT
MATERIALS
NATIONAL ORGANIZATIONS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PORTLAND CEMENT
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RESIDUES
SOLIDIFICATION
SULFATES
SULFUR COMPOUNDS
TECHNOLOGY ASSESSMENT
US DOE
US ERDA
US ORGANIZATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PRODUCT UTILIZATION
WASTES