Hydration mechanism and properties of disperse-reinforced solutionsJournal: Bulletin of Prydniprovs'ka State Academy of Civil Engineering and Architecture (Vol.2020, No. 5)
Publication Date: 2020-11-10
Authors : Hryshko H. M.;
Page : 147-153
Keywords : hydration; disperse-reinforced solutions; structure; interface;
One of many factors impacting the mechanism of hardening reactions is the hard surface area at the interaction of different phases. Changing their ratios affects the morphology of crystals, shape of blocks, and scaffold structure. Today, surfactants are used for the production of structures and products based on mineral binders; however, theoretical issues related to their impact on the morphology and structure of the scaffold, and therefore on the properties of materials, have not been sufficiently studied. The purpose of the article. To study the hydration process and properties of disperse-reinforced solutions. Conclusion. The analysis of the provided results shows that besides the dimensional parameters, the structure is highly influenced by the properties and type of discrete fibers, particularly, the surface, surface activity, and surface area. The impact of these factors is associated with the system hydration processes and formation of a fiber-matrix contact layer. The active surface not only increases the solid interface, but also affects the physical and chemical hardening processes. Changing the value of the inactive surface either increases or reduces the reinforcement effect of fibers. The main disadvantage of such a surface is the low strength of the contact layer; besides, fiber-matrix load transfer basically requires an increase in the length of discrete fibers. Consequently, attention should be drawn to the impact of surface types on the hydration processes of systems based on mineral binders. If we consider hydration as a physicochemical interaction of components, it becomes clear that the presence of insoluble components directly impacts the structure formation process. This process depends on the mixing phase, chemical reactions, and hardening conditions. The first phase is characterized by the distribution of components throughout the volume and depends on their properties. These are mainly the dimensions, particle size distribution, and surface.
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