Composition design and properties forecasting architectural reactive powder concrete with blast furnace granulated slag

The article is devoted to the study of the possibility of obtaining reactive powder concrete for the construction of difficult configuration and increased architectural expressiveness structures by completely replacing silica fume and other active mineral admixture with blast-furnace granular slag. On the basis of experimental data showing the influence of technological factors on the waterdemand of the concrete mixture and the strength characteristics of the concrete under study at different ages, mathematical models of the main parameters were obtained. Using a set of models, a method is proposed for determining the composition of such concrete, which makes it possible to predict the properties of the concrete mixture and the strength of the reactive powder concrete at different ages. A numerical example of the design of the reactive powder concrete composition by the proposed method is given.