KFU. Card publication. Mechanism of solidification of simulated borate liquid wastes with sodium silicate activated slag cements

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FEDERAL UNIVERSITY

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MECHANISM OF SOLIDIFICATION OF SIMULATED BORATE LIQUID WASTES WITH SODIUM SILICATE ACTIVATED SLAG CEMENTS

Form of presentation

Articles in international journals and collections

Year of publication

2017

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Authors, employees of KFU

Osin Yuriy Nikolaevich, author

Bibliographic description in the original language

Nailia R. Rakhimova Mechanism of solidification of simulated borate liquid wastes with sodium silicate activated slag cements / Nailia R. Rakhimova, Ravil Z. Rakhimov, Vladimir P. Morozov, Ludmila I. Potapova, Yury N. Osin // Journal of Cleaner Production 149 (2017) pp. 60-69

Annotation

Journal of Cleaner Production

Keywords

Hydration products, Granulated blast furnace slag, Alkali-activated cement, Radioactive waste, Waste management

The name of the journal

Journal of Cleaner Production

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=152653&p_lang=2

Resource files

File name	Size (MB)	Format
1_s2.0_S0959652617302809_main__1_.pdf	2,83	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Osin Yuriy Nikolaevich	ru_RU
dc.date.accessioned	2017-01-01T00:00:00Z	ru_RU
dc.date.available	2017-01-01T00:00:00Z	ru_RU
dc.date.issued	2017	ru_RU
dc.identifier.citation	Nailia R. Rakhimova Mechanism of solidification of simulated borate liquid wastes with sodium silicate activated slag cements / Nailia R. Rakhimova, Ravil Z. Rakhimov, Vladimir P. Morozov, Ludmila I. Potapova, Yury N. Osin // Journal of Cleaner Production 149 (2017) pp. 60-69	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=152653&p_lang=2	ru_RU
dc.description.abstract	Journal of Cleaner Production	ru_RU
dc.description.abstract	Journal of Cleaner Production	ru_RU
dc.description.abstract	In this study the mineral matrix based on hydrous sodium metasilicate (NSH5) activated slag cement (AASC) was found to be suitable for solidification of borate solutions with pH 8.5e10.5 and concentration up to 200 g/L. Parameters such as setting times and compressive strength of the waste forms based on AASC and borate wastes can be influenced by the ratio of NSH5 and H3BO3 content. The dosage of 7% Na2O in the alkali activator per slag provides acceptable setting times and 28-day compressive strength of the waste forms in the range 49.7e56.1 MPa depending on pH of the borate solutions. Lowering the pH of borate solutions results in a reduced rate of setting of the fresh AASC paste, retardation in the structural formation of the hardened AASC paste, a reduced degree of hydration, and a reduction in the amount of calcium silicate hydrates and hydrotalcite. The product of AASC-based mineral matrix and simulated borate wastes interaction is ulexite (NaCaB5O6(OH)6(H2O)5).	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Hydration products	ru_RU
dc.subject	Granulated blast furnace slag	ru_RU
dc.subject	Alkali-activated cement	ru_RU
dc.subject	Radioactive waste	ru_RU
dc.subject	Waste management	ru_RU
dc.title	Mechanism of solidification of simulated borate liquid wastes with sodium silicate activated slag cements	ru_RU
dc.type	Articles in international journals and collections	ru_RU