The studies’ results of the adhesive and the cement-polymer compositions shrinkage phenomena are given. Theoretical approaches are justified when selecting additives to reduce the cement-polymer systems shrinkage deformations. A method for measuring water separation and shrinkage with the DBS device (the soil bucking measuring device), which simulates the modified disperse systems intrinsic deformations processes and of the products based on them, is proposed. The adhesion strength results of at the “stone material-solution” boundary are given. It has been shown that the solutions shrinkage has a significant effect on the adhesive strength.

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Modifiers of cement systems with different compositions of functional groups of polymers were studied: carboxymethylcellulose, methylcellulose, polyvinyl alcohol, polyacrylamide. The results of studies of the influence of active ions on the viscosity of aqueous solutions of water-soluble polymers using viscometry methods are presented. The influence of the type and composition of functional groups of polymer additives on the resistance to calcium, sodium and potassium ions is analyzed. It is shown that in the presence of calcium, sodium or potassium ions in the liquid phase of cement solutions, it is possible to reduce the effectiveness of polymers as stabilizers of binding systems. The most resistant to electrolytes are polymers with dominated hydroxyl groups. The composition of functional groups of water-soluble polymers and the possibility of their interaction with various ions contained in cement, aggregate, filler, in the closing water, in the composition of soils have a decisive influence on the compatibility of the polymer and the binder, the properties of cement-polymer compositions. The principles of regulating the rheological and technological properties of cement-polymer compositions, deformations of dispersed systems by selecting the rational composition of the dispersed mixture, mineral and chemical additives are given. The regularities of compatibility of components of cement systems, mineral and chemical additives in order to increase the adhesion and strength characteristics of materials based on them in the development of compositions of masonry solutions, injection and other compositions for chemical fixing of soils, in individual housing construction, in order to carry out repair and restoration work to strengthen soil bases and stone structures are presented.

The processes of hydration and hydrate phase formation of calcium aluminoferrites are insufficiently covered in the technical literature. Thermodynamic analysis of the hydration processes of calcium aluminoferrite of 4CaO·Al2O3·Fe2O3 is difficult due to the unreliability of the initial data for hydration products. The question of the basicity of calcium hydroferrites requires clarification. There is insufficient data on the justification of the method of calculating the thermodynamic properties of hydroferrite -∆G0298, - ∆H0298 and c(T), verification of their results, the mechanism of formation of the complex anion Fe(OH)4- and its stability in the liquid phase of hydrating C4AF. The hydration of 4CaO·Al2O3·Fe2O3 with the formation of 2CaO·Al2O3·8H2O as hydrate phases is considered. The energy of hydrogen bonds between the layers of Ca(OH)2, Al2(OH)3 and Fe(OH)3, from which the hexagonal layers of these complex calcium, aluminum and iron hydroxides are composed, is compared. It is shown that the values of ∆G0298 and ∆H0298 2CaO·Fe2O3·8H2O, which are equal to -937.2 and -1082.3 kcal/mol, respectively, are not consistent with experimental data on the solubility of C2FH8 and the specific heat release during C4AF hydration (100-115 kcal/g). Values for C2FH8, ∆G0298= -933, ∆H0298 = -1072 kcal/mol are recommended. It is shown that the formation of Fe(OH)3 hydroxide in the amorphous state, rather than the Fe(OH)4 ion, is preferable as an intermediate product of C4AF hydration.