The use of mathematical modelling in the composition of a composite material

The paper treats the use of modelling of the mixture proportioning of a new composite material (CM) on the basis of combined utilization of secondary industrial by-products [V. Petkova, Composition of Heavy Strength Concrete, Patent Ser. B No. 60100, 03.10.19094, Bulgaria]. A three-parameter polynomial model is used for the determination of the amount of the composite components cement, active additive and granulated blast-furnace slag. It is shown that using this approach, the component's influence on the changes of compressive strength in the course of up to one-year hardening of the composite can be evaluated.