Telitsyna N. Designing of optimum composition of dry mix mortar

The thesis deals with the development and introduction of expertise approach to the design of dry mixes with the required quality for masonry work. The developed expert system in the form of classification models is used to obtain optimization parameters of dry building mixes, as well as qualitative and quantitative composition of main components of the mixture. The determination of dependence of the parameters of the quality of dry mix mortar from its composition is carried out by means of regression analysis of active and pseudo active experiment. A calculation algorithm of a search optimal granulometric composition of fillers is implemented. The optimization of compositions of dry construction mixes for masonry work is performed using the Harrington function. The cost-effectiveness estimation of designed mixes is carried out by use of competitiveness coefficient. With the use of technologies of the deployment of the quality function, issued recommendations concerning the direction of further properties of the improving the dry mixes for masonry mortar.