MODELING AND OPTIMIZATION OF THE AEROCONCRETE TECHNOLOGY

Vestnik MGSU 4/2012
  • Zhukov Aleksey Dmitrievich - Moscow State University of Civil Engineering (MSUCE) C andidate o f Technical S ciences, A ssociated P rofessor, D epartment of Technology of Finishing and Insulating Materials, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoeshosse, Moscow, 129337, Russia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Chugunkov Aleksandr Viktorovich - Moscow State University of Civil Engineering (MGSU) Director, Department of Examination of Buildings, postgraduate student, Department of Technology of Finishing and Insulation Materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Gudkov Pavel Kirillovich - Moscow State University of Civil Engineering (MSUCE) Engineer, Web-editor, Editorial and Publishing Centre, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 155 - 159

Heat-insulating cellular concrete manufactured in the variotropic pressure environment, may be used both for making single-piece products, and for monolithic construction purposes. Optimization of technology-related parameters prevents excessive consumption of principal components, while output products maintain pre-set characteristics. Both the product and the technology are based on the provisions of the general methodology of development of highly porous materials.
The technology is based on the principle of adjustable formation of the state of stress in the variotropic pressure environment. The state of stress maintained in the course of blowout contributes to formation of optimized cellular structure (in accordance with the criteria that include the shape, dimensions of pores, and characteristics of interpore partitions).
The process of manufacturing of the heat-insulating cellular concrete breaks down into the following stages: preparation of raw materials, preparation of the cellular concrete mixture, casting of products, thermal processing or ageing in the natural environment. Products are placed under heating domes, equipped with electric heaters, and exposed to heat treatment for six hours. Before the heat treatment, products are kept in their moulds for four hours. In the absence of heat treatment, products are kept on their pallets for 14 days.
Selection of the appropriate composition and optimal technological parameters is performed with the help of G-BAT-2011 software programme developed at MSUCE. The software is based on the methodology that is based on complete factorial experiments, experiments based on fractional replicates and testing of all essential statistical hypotheses. Linear, incomplete quadratic and quadratic equations generated as a result of experiments make it possible to design a model that represents natural processes in the adequate manner. The model is analytically optimized and interpreted thereafter.

DOI: 10.22227/1997-0935.2012.4.155 - 159

References
  1. Zhukov A.D., Chugunkov A.V. Lokal'naya analiticheskaya optimizatsiya tehnologicheskikh protsessov [Local Analytical Optimization of Technology-related Processes]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 1, vol. 2, pp. 273—278.
  2. Zhukov A.D., Chugunkov A.V. Rudnitskaya V.A. Reshenie tehnologicheskikh zadach metodami matematicheskogo modelirovaniya [Resolution of Technology-related Problems by Methods of Mathematical Modeling]. Moscow, MSUCE, 2011, 176 p.

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