Mathematical Model of Deformations of Cement Stone Under the Influence of Complex Additive

In the present work the possibility of controlling the development of eigenstrains of polymer-cement compositionsPolymer-cement compositions is considered. Such control is achieved by means of formulation regulation of mineral component of multicomponent binder. In future, it will allow one to increase essentially reliability and durability of materials on their basis. The dependences describing the influence of a complex polymeric additive consisting of a superplasticizerSuperplasticizer, a stabilizer and a re-dispersible polymeric powder (RDPPRe-dispersible polymer powder (RDPP)) on the development of deformationsDeformation of the cement stoneCement stone have been obtained. Coefficients, reflecting the effect of polymers on the shrinkage of cement stoneCement stone, have been proposed and functions of coefficient values depending on the dosage of additives have been obtained. A multiplicative modelMultiplicative model of assessing the impact of modifiers on the properties of polymer-cement compositionPolymer-cement compositions has been developed, with the help of which it is possible to regulate the development of deformationsDeformation. On the basis of the received data the mathematical model of this process has been created.