Lapovska S. Autoclaved aerated concrete with improved performance characteristics

The Research Facility - the processes of the formation and phase composition and pore structure of AAC on composite lime-silica binder and regulation characteristics of the concrete introduction of functional additives. The subject of research - autoclaved aerated concrete with improved properties and a set of projected performance. Goal - the establishment of the relationship between material composition, structure, properties and parameters of the production technology. Research methods - XRD, DTA, scanning electron microscopy, and methods set out in the regulations. Novelty - Design formulas for the composition of aerated using lime with different activity. The optimum compositions and types of materials for particulate reinforcement, and for the bulk hydrophobic AAC with predictable properties were determined. The regularities and quantitative relationships influence of additives PMS-100 and cellulose fibers on the processes of structure and properties of autoclaved aerated concrete. First proposed to use of cellulose fiber length of 1-1.5 mm diameter 20 - 25 mm for the particulate reinforced autoclaved aerated concrete. The skeleton-fiber-reinforced concrete technology model, a set of technological ways to control structure formation and prediction of physical and mechanical properties of the composites. The optimum composition of autoclaved aerated concrete, its increased expression (Rbt / Rc), increased by 30% coefficient of constructive quality at a reduced density by 18%. We propose a rapid method for determining the frost resistance at temperatures from -18 ? C to -50 ? C. A system of quality requirements for lime, organizational and chemical-technological methods of stabilization technology was made. Proved possible to save raw materials, energy and material resources in the plant's production of autoclave aerated concrete products based on the practical implementation of the proposed control system technologies. The technological regulations and a batch of particulate- reinforced and bulk hydrophobic AAC with improved performance characteristics. Shows the economic efficiency of the proposed solutions with the release of lots at existing plants. Industry - construction.