scholarly journals (Radioactive waste immobilization)

1987 ◽  
Author(s):  
W Pitt, Jr
Keyword(s):  
Radioactive Waste ◽  
Radioactive Waste Immobilization ◽  
Waste Immobilization

Thermal Stability of Geopolymer - Sr Contaminated Zeolite A Blends

2017 ◽  
Vol 727 ◽  
pp. 1089-1097 ◽  
Author(s):  
Zao Jiang ◽  
Zhong Hui Xu ◽  
Qin Shuai ◽  
Ping Li ◽  
Ya Hong Xu
Keyword(s):  
Thermal Stability ◽  
Radioactive Waste ◽  
Zeolite A ◽  
Leaching Rate ◽  
Excellent Thermal Stability ◽  
Freeze Thaw ◽  
Radioactive Waste Immobilization ◽  
Alternative Materials ◽  
Waste Immobilization ◽  
Thermal Stability Of

Geopolymer have gradually become an alternative materials for hazardous and radioactive waste immobilization. However, the compatibility between radioactive waste and geopolymer in various extreme conditions are still not clear. In this study, the thermal stability of geopolymer solidified product of Sr contaminated zeolite A was investigated. For this purpose, the specimens after standard curing were subjected to temperatures of 600, 700 and 800 degrees C for 2h. Freeze-thaw cycles were also employed to test the thermal stability of geopolymer matrices. Meanwhile, changes in the leaching characteristics and physical properties were analyzed. Analysis showed that geopolymer - Sr contaminated zeolite A blends exhibited excellent thermal stability. Although elevated temperature and freeze-thaw cycles led to the deterioration of geopolymer matrices, the leaching rate and mechanical properties of solidified product were still acceptable. The resluts obtained indicated that geopolymer appeared to be very suitable for radioactive waste immobilization.

Borosilicate glass and synroc R&D for radioactive waste immobilization: An international perspective

JOM ◽  
2003 ◽  
Vol 55 (10) ◽  
pp. 48-51 ◽  
Author(s):  
Sangeeta Deokattey ◽  
Nita Bhaskar ◽  
V. L. Kalyane ◽  
Vijai Kumar ◽  
Pralhad B. Jahagirdar
Keyword(s):  
Radioactive Waste ◽  
Borosilicate Glass ◽  
International Perspective ◽  
Radioactive Waste Immobilization ◽  
Waste Immobilization
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