The article presents the results of research the possibility of alkali-activated slag cements for solidification of borate salt solutions, simulating liquid radioactive wastes of nuclear power plants, operating pressu-rized water reactors. The properties of the cement waste forms based on alkali-activated slag cements and borate salt solutions, depending on the content of the alkaline activator, salinity and pH of borate solutions.
radioactive wastes, alkali-activated slag cements, borates, conditioning, immobilization
1. Cementitious Materials for Nuclear Waste Immobilization / R. O. Abdel Rahman, R. Z. Rakhimov, N. R. Rakhimova [et al.]. - Chichester: Wiley, 2015. - 237 r.
2. Ojovan M. I., Samanta S. K. Recent IAEA activities to support utilization of cementitious materials in radioactive waste management / Proceedings of NUWCEM 2014, 1st Int. Symposium on Cement-based materials for Nuclear Wastes. - Avignon, France 3-5.06.2014. - 2014.
3. Roux C. Conditioning of Radioactive Concentrates with High Boron Content, Formulation and Characterization. - France, These de l’Universite Paris Sud. - 1989. - 112 r.
4. God G. K., Valeshko M. G. Korrelyaciya form boratov, poluchennyh iz rastvorov s razlichnym rN // Zhurnal neorganicheskoy himii. - 1960. - № 5. - S. 634-639.
5. Eskander S. B., Tawfik M. E., Bayoumi T. A. Immobilization of borate waste simulate in cement-water extended polyester composite based on poly (ethylene terephthalate) waste // Polymer plastic technology engineering. - 2006.- № 45. - P. 939-945.
6. Guerrero A., Goñi S. Efficiency of a blast furnace slag cement for immobilizing simulated borate radioactive liquid waste // Waste Management. - 2002. - № 22(7). - R. 831-836.
7. Qina S., Junfeng L, Jianlong W. Effect of borate concentration on solidification of radioactive wastes by different cements // Nuclear Engineering and Design. - 2011. - № 241. - P. 4341-4345.
8. Influence of sodium borate on the early age hydration of calcium sulfoaluminate cement / J.-B. M. Champenois, D. Dhoury, C. Cau-Dit-Coumes [et al.] // Cement Concrete research. - 2015. - № 70. - P. 83-93.
9. Qina S., Jianlong W. Cementation of radioactive borate liquid waste produced in pressurized water reactors // Nuclear Engineering and Design. - 2010. - № 240. - R. 3660-3664.
10. Hall D. A. The effect of retarders on the microstructure and mechanical properties of magnesia-phosphate cement mortar // Cement and Concrete Research. - 2001. - № 31. - R. 455-465.
11. Influence of boric acid on the hydration of magnesium phosphate cement at an early age / L. Hugo, C. Cau-Dit-Coumes, D. Lambertin [et al.] // Abstract book of the 14th International Congress on the Chemistry of Cement, Volume II, 13-16.10.2015. - Beijing, China. - 2015. - 610 r.
12. Yang J. Effect of borax on hydration and hardening properties of magnesium and potassium phosphate cement pastes // Journal of Wuhan University of Technology-Materials Science. - 2010. - № 25. - R. 613-618.
13. Palomo A., De la Fuente J. I. Alkali-activated cementitous materials: alternative matrices for the immobilisation of hazardous wastes, part I. Stabilisation of boron // Cement and Concrete Research. - 2003.- № 33(2). - R. 281-288.
14. Rahimova H. P., Rahimov P. Z., Stoyanov O. V. Kompozicionnye vyazhuschie dlya immobilizacii toksichnyh i radioaktivnyh othodov // Vestnik Kazanskogo tehnologicheskogo universiteta. - 2013. - T. 16, № 4. - S. 175-182.
15. Solidification of nitrate solutions with alkali-activated slag and slag- metakaolin cements / N. R. Rakhimova, R. Z. Rakhimov, Y. N. Osin [et al.] // Journal of Nuclear Materials. - 2015. - Vol. 457. - P. 186-195.
16. Cau-Dit-Coumes C., Courtois S. Cementation of a low-level radioactive waste of complex chemistry Investigation of the combined action of borate, chloride, sulfate and phosphate on cement hydration using response surface methodology // Cement and Concrete Research. - 2003. - № 33. - P. 305-316.
17. Shi C., Day R. L. A calorimetric study of early hydration of alkali-slag cements // Cement and Concrete Research. - 1995. - № 25(6). - P. 1333-1346.
18. Shi C. Early hydration and microstructure development of alkali-activated slag pastes // 10th International Congress on the Chemistry of Cement, Gothenburg, Sweden. - 1997. - 3-099. - 8 p.
