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The feasibility study of the low-cement magnesia concretes production
https://doi.org/10.17073/1683-4518-2018-10-58-61
Abstract
The possibility to produce the vibro- and self-flow lowcement periclase concretes was investigated in the article. It was shown that when the concrete mixture is prepared in conventional conditions the aggregate and the fne ground component based on the fused periclase hydrate very little if any: over three days of the concrete curing the brucite content doesn't exceed 1 %. The data received can be used as the basis for the further development of the magnesia concretes with advanced properties.Ill.1. Ref. 17. Tab. 2.
About the Authors
I. D. KashcheevRussian Federation
K. G. Zemlyanoi
Russian Federation
A. R. Khafsova
Russian Federation
D. V. Kuznetsov
Russian Federation
References
1. Аксельрод, Л. М. Развитие огнеупорной отрасли — отклик на запросы металлургии / Л. М. Аксельрод // Бюл. «Черная металлургия». ― 2013. ― № 3. ― С. 125‒142.
2. Deneen, М. Global Refractories set for recovery / M. Deneen // Industrial Minerals. ― 2011. ― № 5. ― Р. 29, 30.
3. Schmidt-Whitley, R. The Success Story of European Refractories / R. Schmidt-Whitley // Refractories worldforum. ― 2012. ― Vol. 4, № 2. ― С. 37‒40.
4. Илякин, А. В. Новое поколение магнезиальных торкрет-масс ООО «Группа «Магнезит» / А. В. Илякин, П. А. Баранов, Е. И. Поспелова, А. Н. Амурзаков // Новые огнеупоры. ― 2008. ― № 7. ― С. 17.
5. Myhre, B. Periclase castables based on the bond of MgО‒SiО2‒H2О: properties and current status / B. Myhre, C. Оdegard, H. Feldborg // In Proceedings of 5th India International Refractories Congress. ― 2002. Bhubaneswar. India. ― Р. 1‒6.
6. Сизиков, А. М. Пути повышения качества магнезиальных бетонов / А. М. Сизиков, Е. В. Шаповалов. ― Омск : СибАДИ, 2009. ― 92 с.
7. Ahari, K. G. Hydration of refractory oxides in castable bond systems ― I : alumina, magnesia and aluminamagnesia mixtures / K. G. Ahari, J. H. Sharp, W. E. Lee // J. Eur. Ceram. Soc. ― 2002. ― Vol. 22, № 4. ― Р. 495‒503.
8. Altun, A. Thermomechanical properties of the MgO based self-flowing castables / A. Altun // 48th International Colloquium of Refractories, Aachen, 28 and 29 September. ― 2005. ― P. 49‒52.
9. Braulio, M. A. L. How does calcium aluminate cement content affect magnesia-alumina cartables? / M. A. L. Braulio, D. H. Milanez, E. Y. Sako, L. R. M. Bittencourt, V. C. Pandolfelli // J. Tech. Assoc. Refr., Japan. ― 2011. ― Vol. 31, № 1. ― Р. 27‒33.
10. Sako, E. Y. Microstructural evolution of magnesiabased castables containing microsilica / E. Y. Sako, M. A. L. Braulio, V. C. Pandolfelli // Ceram. Int. ― 2012. ― № 38. ― Р. 6027‒6033.
11. Оdegard, C. Flow and properties of MgO based castables / C. Оdegard, B. Myhre, N. Zhou, S. Zhang // In Proceedings of XXXII ALAFAR Meeting. ― 2004. ― Antigua. Guatemala. ― Р. 1‒11.
12. Саломао, Р. Влияние гидравлических вяжущих на гидратацию спеченного магнезита в огнеупорных бетонах / Р. Саломао, В. К. Пандолфелли, Л. Р. Биттенкурт // Огнеупоры и техническая керамика. ― 2011. ― № 4/5. ― С. 59‒63.
13. Salomao, R. A novel approach for magnesia hydration assessment in refractory castables / R. Salomao, L. R. M. Bittencourt, V. C. Pandolfelli // Ceram. Int. ― 2007. ― № 33. ― Р. 803‒810.
14. Salomao, R. Magnesia anti-hydration techniques for refractory castables / R. Salomao, L. R. M. Bittencourt, V. C. Pandolfelli // In Proceedings of the Unifed International Technical Conference on Refractories (UNITECR’07). ― 2007. Dresden, Germany. ― Р. 558‒561.
15. Salomao, R. The role of hydraulic binders on magnesia containing refractory castables: calcium aluminate cement and hydratable alumina / R. Salomao, V. C. Pandolfelli // Ceram. Int. ― 2009. ― № 35. ― Р. 3117‒3124.
16. Hubbard, C. R. The reference intensity ratio for computers powder patterns / C. R. Hubbard, E. H. Evans, D. K. Smith // J. Appl. Cryst. ― 1976. ― Vol. 169, № 9. ― P. 169‒174.
17. Amaral, L. F. Cholants to inhibit magnesia (MgO) hydration / L. F. Amaral, J. R. Oliveira, P. Bonadia, R. Salomao, V. C. Pandolfeli // Ceram. Int. ― 2011. ― № 37. ― Р. 1537‒1542.
Supplementary files
For citation: Kashcheev I.D., Zemlyanoi K.G., Khafsova A.R., Kuznetsov D.V. The feasibility study of the low-cement magnesia concretes production. NOVYE OGNEUPORY (NEW REFRACTORIES). 2018;(10):58-61. https://doi.org/10.17073/1683-4518-2018-10-58-61
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