Alkali-activated slag binders from rock-wool production wastes
The article exposes the results of studies on the production of alkali-activated slag binders from rock-wool production wastes and their composite derivatives, which are resistant to corrosive effects of biological environment. Thermal analysis showed that the structurization in the "rock wool...
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| Veröffentlicht in: | Inzhenerno-stroitelʹnyĭ zhurnal Jg. 82; H. 6; S. 219 - 227 |
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| Hauptverfasser: | , , , , , |
| Format: | Journal Article |
| Sprache: | Englisch |
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Peter the Great St. Petersburg Polytechnic University
01.01.2018
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| ISSN: | 2071-0305 |
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| Abstract | The article exposes the results of studies on the production of alkali-activated slag binders from rock-wool production wastes and their composite derivatives, which are resistant to corrosive effects of biological environment. Thermal analysis showed that the structurization in the "rock wool production waste-water-NaOH" system is most efficient with the NaOH/waste ratio of 0.02–0.03, and the main newlyformed phases in the solidified alkali-activated slag composites are low-basic calcium hydrosilicates and analcime. The best values of the physical and mechanical properties of obtained binders are achieved with a waste grinding fineness of 400–450 m2/kg. The compressive strength of the developed composite materials reaches 68 MPa and bending strength is 13.5 MPa with a waste grinding fineness of 300 m2/kg. Composites based on binders made of rock-wool production waste are waterproof and funginert, and individual compounds are fungicidal. |
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| AbstractList | The article exposes the results of studies on the production of alkali-activated slag binders from rock-wool production wastes and their composite derivatives, which are resistant to corrosive effects of biological environment. Thermal analysis showed that the structurization in the "rock wool production waste-water-NaOH" system is most efficient with the NaOH/waste ratio of 0.02–0.03, and the main newlyformed phases in the solidified alkali-activated slag composites are low-basic calcium hydrosilicates and analcime. The best values of the physical and mechanical properties of obtained binders are achieved with a waste grinding fineness of 400–450 m2/kg. The compressive strength of the developed composite materials reaches 68 MPa and bending strength is 13.5 MPa with a waste grinding fineness of 300 m2/kg. Composites based on binders made of rock-wool production waste are waterproof and funginert, and individual compounds are fungicidal. |
| Author | Andrej Bogatov Aleksej Chegodajkin Vladislav Yakunin Alexander Rodin Viktor Bochkin Vladimir Erofeev |
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| Title | Alkali-activated slag binders from rock-wool production wastes |
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