Properties of radioactive wastes and waste containers. Quarterly progress report, October-December 1981

Technical Report · Sat May 01 00:00:00 EDT 1982

OSTI ID:5054770

Morcos, N; Dayal, R

A study correlating the leachability of /sup 137/Cs from small-scale to large-scale cement forms was performed. The waste forms consisted of organic ion exchange resins incorporated in Portland I cement, with a waste-to-cement ratio of 0.6 and a water-to-cement ratio of 0.4 (as free water) and boric acid waste (12% solution), incorporated in Portland III cement, with a waste-to-cement ratio of 0.7. /sup 137/Cs was added to both waste types prior to solidification. The samples' dimensions varied from 1 in. x 1 in. to 22 in. x 22 in. (diameter x height) in size. Leach data extending over a period of 260 days were obtained. A method based on semi-infinite plane source diffusion model was applied to analyze the leach data. An effective bulk diffusion coefficient was calculated from the leach data for both types of solidified waste. A derived mathemtical expression allows prediction of the amount of /sup 137/Cs leached from the forms as a function of leaching time and waste form dimensions. A reasonably good agreement between the experimental and calculated data is obtained.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5054770
• Report Number(s): NUREG/CR-2193-Vol.1-Nos.3-4; BNL-NUREG-51410-Vol.1-Nos.3-4; ON: TI86000963
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
CESIUM 137
DISTRIBUTION FUNCTIONS
LEACHING
PORTLAND CEMENT
EXPERIMENTAL DATA
ION EXCHANGE MATERIALS
LOW-LEVEL RADIOACTIVE WASTES
RESEARCH PROGRAMS
RESINS
WASTE FORMS
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BUILDING MATERIALS
CEMENTS
CESIUM ISOTOPES
DATA
DISSOLUTION
FUNCTIONS
INFORMATION
ISOTOPES
MATERIALS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
SEPARATION PROCESSES
WASTES
YEARS LIVING RADIOISOTOPES
052002* - Nuclear Fuels- Waste Disposal & Storage
360604 - Materials- Corrosion
Erosion
& Degradation