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RESEARCH OF BUILDING MATERIALS

PECULIARITIES OF STRUCTURE FORMATION OF CEMENT CONCRETES FILLED WITH SLAG WASTE PRODUCTS OF METAL PROCESSING PLANTS

Vestnik MGSU 11/2012
  • Gubanova Lyudmila Nikolaevna - Volzhskiy Institute of Civil Engineering and Technologies (VISTECH, Branch of Volgograd State University of Architecture and Civil Engineering (VolgGASU) postgraduate student, Department of Material Science and Mechanics, +7(8442)96-99-56, Volzhskiy Institute of Civil Engineering and Technologies (VISTECH, Branch of Volgograd State University of Architecture and Civil Engineering (VolgGASU), 72 pr. Lenina, Volzhskiy, Volgograd Region, 404130, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pushkarskaya Olga Yurevna - Volzhskiy Institute of Civil Engineering and Technologies (VISTECH, Branch of Volgograd State University of Architecture and Civil Engineering (VolgGASU) Candidate of Technical Sciences, Associate Professor, Department of Technologies of Processing and Production of Materials, +7(8442)96-99-56, Volzhskiy Institute of Civil Engineering and Technologies (VISTECH, Branch of Volgograd State University of Architecture and Civil Engineering (VolgGASU), 72 pr. Lenina, Volzhskiy, Volgograd Region, 404130, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Alimova Liliya Andreevna - Volgograd State University of Architecture and Civil Engineering (VolgGASU) Department of Construction Materials and Construction Technologies, +7 (8442)96-99-56, Volgograd State University of Architecture and Civil Engineering (VolgGASU), 1 Akademicheskaya st., Volgograd, 400074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Akchurin Talgat Kadimovich - Volgograd State University of Architecture and Civil Engineering (VolgGASU) Candidate of Technical Sciences, Professor, Chair, Department of Construction Materials and Construction Technologies, +7 (8442)96-99-56, Volgograd State University of Architecture and Civil Engineering (VolgGASU), 1 Akademicheskaya st., Volgograd, 400074, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 152 - 158

Relevance of traditional replacement of scarce resources of the construction industry similar
to waste products in terms of their composition and condition is unquestionable from the viewpoint
of their economy and the environment. The structure and physical properties of cement concretes
filled with slag waste products are determined by the type and number of tumours, the phase generation
rate, and the structure of the porous space. The research findings have proven that cement
concrete compositions that contain slag demonstrate higher strength than those that have no slag.
Slag waste products can be used as concrete aggregates.
The hydration ratio of samples of cement that had slag waste products added and the hydration
ratio in the course of the composition formation were identified using methods of microscopy
analysis. The structure of samples that had slag products added was analyzed through the employment
of stereoscopic microscope MBS-9 (3.3 - 100.8X) capable of producing a direct-viewing
image of the sample. The point method was employed to analyze the slag phase quantity. The
point method of quantitative metallography was employed to identify the volume ratio of structural
components or phases. Practical implementation of the point method requires a magnifi cation rate
sufficient for the structural components to be big enough to identify whether the point falls within the
phase section or not. The point-to-point distance is to prevent two or more point to fall within one
section of the micro-particle under research.
Optimal mineral additive quantity based on the minimal cement consumption rate or the minimal
cost of concrete, and optimal mineral additive quantity based on the structure determined by the
physical condition of the system, are driven by the redistribution of particles over the cement grout.
The optimal mineral additive quantity from the viewpoint of its structure is the one to be selected, as
the concretes that demonstrate the structure of this type have maximal strength as a response of the
"Cement + Modifying Additive System" to the optimization of the disperse medium of the concrete.

DOI: 10.22227/1997-0935.2012.11.152 - 158

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