Light Porous Concretes on the Basis of Dry Mixtures

Dry activated mixture mixed with porous fillers for obtaining lightweight concretes more effective than existing has been developed. The results of physical-technical properties of the developed light porous concretes (LPC) on the basis of dry mixtures are presented; the analysis of micro and macro-structures is made. The analysis of macrostructure of the developed LPC shows the following: regardless of the granule type, the filler is evenly distributed over the entire height of the sample and there is no sign of desintegration due to the difference in the density of the filler and the porous matrix of cement stone, and the cells of the pore structure of the matrix are closed. The schematic diagram of the technology of their production by single-stage technology is shown. Production of light porous concretes based on dry mechanical activated mixtures can be divided into three series-dependent parts producing three types of marketable production: dry mixture for foam concrete (DMFC), dry mixture with light filler for production of LPC (DMLPC) and marketable light concrete mixture for monolithic construction and production of wall blocks of factory production. The advantage of this scheme can be a wide possibility of physical and chemical modification of the dry mixture, including nano-scale additives, which makes it possible to control the technological and physical and mechanical properties of the lightweight concrete mixture – the resulting porous lightweight concrete with various porous fillers.

V.G. KHOZIN, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
N.M. KRASINIKOVA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
E.V. ERUSLANOVA, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, Republic of Tatarstan, 420043, Russian Federation)

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