(Testing cement-based waste forms)

Technical Report · Thu Nov 12 04:00:00 EST 1987

DOI:https://doi.org/10.2172/6927565· OSTI ID:6927565

Mattus, A J

The traveler participated in a joint collaborative study of waste immobilization together with French scientists at the Centre d'Etudes Nuclearires de Saclay (CEN-S) in France. The types of liquid wastes that are both common and problematic for both the United States and France were of primary interest in this assignment. Two synthetic surrogate wastes, one based upon phosphate and the other nitrate, were utilized. Both wastes are classes as low-level radioactive wastes here in the United States. In the study, four types of French cement were used with out phosphate-based surrogate while three types were used with the nitrate-based waste. Waste forms were cast into various geometries to facilitate their use in both physical and chemical (leaching) tests following 28 days of curing. A few days were spent at the French Centre d' Etudes Nucleaires de Fontenay-aux-Roses discussing the procedures to be followed for the leaching of radioactive samples. In addition, technical discussions were held with a number of their staff on matters of waste form testing, radionuclide transport and diffusion, carbonate complexation and precipitation equilibria, and general laboratory methods used by the French.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6927565
• Report Number(s): ORNL/FTR-2749; ON: DE90012313
• Country of Publication: United States
• Language: English

Related Subjects

052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BUILDING MATERIALS
CEMENTS
CLEANING
DECONTAMINATION
ENVIRONMENTAL TRANSPORT
EUROPE
FRANCE
LIQUID WASTES
LOW-LEVEL RADIOACTIVE WASTES
MASS TRANSFER
MATERIALS
NITRATES
NITROGEN COMPOUNDS
NUCLEAR FACILITIES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHOSPHATES
PHOSPHORUS COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
SOLIDIFICATION
TESTING
TRAVEL
WASTE FORMS
WASTES
WESTERN EUROPE