OBTAINING BINDING COMPOSITIONS FOR CONCRETE IN A CENTRIFUGAL GRINDING MILL-Reference-Cited by-同舟云学术

OBTAINING BINDING COMPOSITIONS FOR CONCRETE IN A CENTRIFUGAL GRINDING MILL

Published:2019-11-07 Issue:10 Volume:4 Page:123-134
ISSN:2071-7318
Container-title:Bulletin of Belgorod State Technological University named after. V. G. Shukhov
language:en
Short-container-title:

Author:

Загороднюк Л.¹,Zagorodnyuk L.²,Уральский В.¹,Ural'skiy Vladimir²,Уральский А.¹,Ural'skiy Aleksey²,Сумской Д.³,Sumskoy D.⁴,Непризваннов А.¹,Neprazvannov A.²,Шкулев А.¹,Shkulev A.²

Affiliation:

1. Белгородский государственный технологический университет им В.Г. Шухова

2. Belgorod State Technological University named after V.G. Shukhov

3. БГТУ им. В.Г. Шухова

4. BSTU named after V.G.Shukhov

Abstract

Abstract. The results of studies on the grinding of waste wet magnetic separation of ferruginous quartz-ites of the Lebedinsky mining and processing plant in a centrifugal grinding unit are given, their grinding features are established. Binder compositions are obtained at different ratios of cement and wet magnetic separation waste in a centrifugal grinding mill at different grinding modes. The features of grinding process-es are studied, the technological and physicomechanical properties of the obtained binding compositions are determined. The data obtained indicate that the use of mineral filler up to 10% provides compaction of the structure due to the presence of fine mineral filler, which will reduce the consumption of Portland cement to 10%. During mechanical activation of the compositions of binding compositions, a sharp increase in the con-centration of surface defects occurs, due to the violation of contacts between crystals with the rupture of sili-con-oxygen valence bonds. The activity of the wet magnetic separation waste of ferruginous quartzites is ap-parently due to the presence of a large number of exchange centers on their surface, a significant part of which are Bronsted acids and bases. The processes of hydration and the formation of cement with the use of binders requires further detailed study.

Publisher

BSTU named after V.G. Shukhov

Subject

Psychiatry and Mental health,Neuropsychology and Physiological Psychology

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