Technology and Automation of Non-Autoclaved Aerated Concrete Production

Abstract

This article describes the technology and automation of non-autoclaved aerated concrete production. The proposed technology differs from traditional technologies by joint grinding of raw materials, which reduces production costs and energy consumption. Automatic control circuitsfor mechanisms executing technological operations are developed. Statistical analysis and verification of a non-linear multiple model confirmed the adequacy of the model: all regression coefficients are significant at the accepted level; all equations are significant; Gauss-Markov conditions are met; model specification is consistent with experimental data. It is possible to choose a composition of mineral additives that would provide the greatest strength of the cement matrix, solving the optimization problem with an equation corresponding to a certain mode of cement hardening. Such technology allows to get competitive high quality wall material, to reduce the cost of production by reducing the number of technological operations, for example, dry grinding of raw mix components, energy consumption and equipment for dry components grinding. The presented technology is recommended for design and use in the production of non-autoclaved aerated concrete wall blocks.