Open AccessREGULATION OF PROCESS AND RECIPE PARAMETERS ON THE BASIS OF MODELING PHYSICAL AND MECHANICAL PROPERTIES OF AUTOCLAVED AERATED CONCRETE
Author(s) -
Роман Шорстов,
Роман Шорстов
Publication year - 2019
Publication title -
vestnik bgtu im. v.g. šuhova
Language(s) - English
Resource type - Journals
ISSN - 2071-7318
DOI - 10.34031/article_5ce292c52da5c9.83158267
Subject(s) - materials science , mixing (physics) , porosity , autoclaved aerated concrete , molding (decorative) , aeration , composite material , mold , waste management , engineering , physics , quantum mechanics
The article discusses the possibility of regulation by changing the amount of aluminum paste, the temperature of the mixing water and the sides of mold for the expansion of molding sand of autoclaved aerated concrete. Also, the achievement of a given maximum temperature of the array, which determines the nature of the pore structure and physico-mechanical properties of products. Mathematical models for optimizing the physicomechanical properties of autoclaved aerated concrete by regulating technological and prescription parameters are obtained using the method of mathematical planning of an experiment. It is established, optimal parameters are the mixing water temperature of 40 ... 45 ° C, the amount of aluminum paste - 0.6% of the binder mass, the temperature of the sides of the form 85 ... 90 ° C, which creates favorable conditions for the expansion of the gas-concrete mixture and the combination of pore formation and set-up structural strength of the array, allowing to obtain an optimal porous structure with smaller and uniform porosity with a sufficiently low density and high strength