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Leaching of radioactive nuclides from cement grouts. Part II
The determination of the leaching rate of radioactive /sup 137/Cs from a cement grout should the grout be contacted by water is necessary for environmental protection. The effect of the leachant turnover rate on /sup 137/Cs leaching rates was evaluated with batch and continuous (modified Soxhlet extractor) modes of experimentation. Three additives (Grundite, potter's clay, and Conasauga shale) were compared in terms of capability of radioactive isotope retention, while two leachants (tap and distilled water) were investigated. The Soxhlet extractor experiment resulted in the highest rate of leaching, and Conasauga shale was found the best additive for /sup 137/Cs immobilization. Tap water used as leachant was more effective than distilled water. Data were analyzed using models involving isotopic diffusion in the grout and involving diffusion plus a time dependent boundary condition at the interface of grout specimen and leachant.
Date:
October 21, 1974
Creator:
Stanley, W. T.; Avgerinos, G. F.; Gonzalez, B. & Hemley, P. J.
Object Type:
Report
System:
The UNT Digital Library
Simple model of D$sub 2$--DT--T$sub 2$ equilibrium at cryogenic temperatures
None
Date:
October 21, 1974
Creator:
Souers, P. C.; Hickman, R. G.; Wade, W. Z. & Tsugawa, R. T.
Object Type:
Report
System:
The UNT Digital Library
Instrumentation for x-ray diagnostics of plasmas
None
Date:
October 21, 1974
Creator:
Violet, C. E.
Object Type:
Article
System:
The UNT Digital Library