Name
Andreeva Aitalina Valentinovna
Scholastic degree
—
Academic rank
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Honorary rank
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Organization, job position
Institute of Oil and Gas problems of SB RAS
Web site url
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Articles count: 7
Researches of fine-grained concrete testify the
possibility of using mineral mechanically activated and
nano-additives in a complex with the anti-frost
additives providing the organization of production of
concrete works at negative air temperatures that is
especially important for the Arctic regions
The article presents the results of the researches of the
influence of a way of crushing on activity of
ingredients of concrete mix. It is shown that sand
crushing by method of free kick in a planetary mill of
AGO-2 allows not only to raise its specific surface, to
receive the demanded particle size distribution, but
also to improve quality of a surface of particles by
removal, destruction of superficial inactive films. On a
new surface of sand excess energy concentrates, the
active centers are formed and there is a fixing of germs
of new growths of products of hydration of cement in a
place of an exit of dislocations to surfaces of crystals
of sand that leads to substantial increase of chemical
activity and reactionary ability of sand
Experimental data on research of influence of
technological parameters on structure and durability at
compression of the modified fine-grained concrete are
presented in the article. It is shown, that at the
optimum maintenance of a mineral additive as a part of
the mixed knitting the optimum capillary and porous
structure of a cement stone and the increased volume
of hydrate new growths is formed. At the raised
volume maintenance of an active mineral additive
there is a formation of the non-optimal capillary and
porous structure of a stone leading to decrease in
efficiency of modifying
The results of research of influence of mechanical activation of filler (river sand) on physical, mechanical and structural properties of fine-grained concrete are presented in the article. The prospects
of using mechanical activation technologies for production of concrete with the improved complex of technical characteristics are established
In the article we have presented the results of research of influence of activated mineral fillers on mechanical properties of fine-grained concrete. It is shown that clay and zeolites in mechanical activated condition have increased both early and estimated durability of concrete
In the article we have presented the experimental data of improvement of physic mechanical properties and structures of fine-grained concrete by a method of mechanical activation of stale cement in various devices
In the article, the experimental data of the research of physical and mechanical properties of the modified composite materials for an arrangement of the bases of road clothes in conditions of the North are presented