Abbasova A. Technology and properties of vibrovakuum ash-concrete

Object of research - technology of vibrovacuumized ash concrete and products based on it. The aim of dissertation work is a study of parameters of technology of vibrovacuumizing of ash concrete mixes based on stale ash for an intensification of technological processes and obtaining of ash concrete with high performance with rational consumption of cement. Methods: Methods of mathematical physics and the theory of complex variable; common standard methods of determining of basic properties of the raw materials, ash concrete mixes, ash concrete; statistical analysis of the results using software StatSoft STATISTICA 7.0. Theoretical and practical results: the theory of compacting of ash concrete mixes by vacuumizing is developed; an equation of vacuum treatment of ash concrete mixes on the basis of the physical nature of the processes is obtained; obtaining of high structural strength of vacuum ash concrete after formation of the product is theoretically grounded; new patterns in the composition of ash concrete mixes designed for compacting by vibrovacuumizing are revealed; the possibility of producing ash concrete of frost resistance F75 is proved; a high-performance vacuum equipment for manufacture of products from ash concrete mixes is developed; technology of products from ash concrete with a full immediate stripping is developed. The scientific novelty: scientific hypothesis of obtaining of ash concrete with high physical and mechanical properties based on stale ash using vibrovacuumizing is proposed and experimentally confirmed; using the apparatus of mathematical physics and the theory of complex variable mathematical model of vibrovacuumized ash concrete mixes is offered and on its basis the theory of vacuum treatment of vibrocompacted ash concrete mixes is developed; new patterns in the composition of ash concrete mixes designed for compacting by vibrovacuumizing are revealed, which consist in the rational mobility of ash concrete mix when the greatest strength of vacuum ash concrete is achieved; the rational modes of compacting of ash concrete mixes by vibrovacuumizing are substantiated and a new vacuum equipment is developed; technology for producing of high structural strength of vacuum ash concretes after formation of the product is theoretically grounded; the received regularities of main operational properties of vibrovacuum ash concrete. Degree of implementation: designs are implemented in the enterprise "Zavod ZhBK", Dnipropetrovsk, vul. Kursantskaya str., 7. Scope of use: results of research can be used in the manufacture of products and structures from ash concrete.