Efficiency of a blast furnace slag cement for immobilizing simulated borate radioactive liquid waste.
The efficiency of a blast furnace slag cement (Spanish CEM III/B) for immobilizing simulated radioactive borate liquid waste [containing H3BO3, NaCl, Na2SO4 and Na(OH)] has been evaluated by means of a leaching attack in de-mineralized water at the temperature of 40 degrees C over 180 days. The leaching was carried out according to the ANSI/ANS-16.1-1986 test. Moreover, changes of the matrix microstructure were characterized through porosity and pore-size distribution analysis carried out by mercury intrusion porosimetry (MIP), X-ray diffraction (XRD) and thermal analysis (TG). The results were compared with those obtained from a calcium aluminate cement matrix, previously published.
D001881:Borates / Q000737:chemistry; D003252:Construction Materials; D017745:Incineration; D016062:Porosity; D011850:Radioactive Waste; D013696:Temperature; D014865:Waste Disposal, Fluid / Q000379:methods*
D001881:Borates; D011850:Radioactive Waste