Optimal dry mixes simulating

Abstract

Abstract When applying mortar mixes in thin layers on porous substrates, moisture is released from the mortar mix. As a result, such operational characteristics of the solution as bending strength, compressive strength, adhesion strength and crack resistance can be reduced. The introduction of modifying additives, such as: dispersed mineral additive, powder polymers and fibers, allows providing these indicators at the required level. In order to simulate the composition of the dry mix with modifying additives, multivariate design of the experiment was carried out, regression equations were obtained, statistical analysis of the proposed equations was carried out, which confirmed their significance. The verified model showed a high degree of correspondence between the values calculated by the regression equations and experimental data. The procedure of regression equations maximizing made it possible to determine the optimal composition of dry construction mixes depending on their functional purpose, hardening conditions and operation.