The methods used for the research are based on modern techniques of watershed mapping represented by catenas and facies; of the numerical solution of two-dimensional catenas equation of moisture transfer in the unsaturated zone and in the zone of complete water saturation; of the crop productivity calculation, depending on the provision with heat and moisture; and on the classification of the watershed catenas by the natural and climatic indicators of their landscapes. The paper presents a model of the stable watershed functioning, which allows to determine environmentally safe reclamative regimes taking into account the provision of landscapes with heat and moisture. This paper also presents the results of predictive calculations and their verification with the data of field experiments.There was made a detailed classification of watershed catenas and facies of the forest-steppe zone of the Western part of the Republic of Bashkortostan. The method of environmentally appropriate reclamative regimes was developed, and there was determined the dependence of water input on the hydrothermal index and humidity factor.For the catenas of the forest-steppe zone reclamation of eluvial facies of watershed catenas is recommended, the optimal irrigation rate being 60 mm. It's recommended the drainage of superaqual facies with the optimal drainage rate up to q.75 m. As a result, the relative productivity of eluval facies by 1.5 times, that of the transit facies -by 1.29 times and of superaqual -in 3.2 times.

Physico-chemical processes of structure formation in nanocomposite building materials are associated with transformations of binding matrices and reinforcing components. The efficiency of building composites in the designed structures depends on the accurate choice of the source components: nanobinders, fillers (aggregates) and manufacturing technology. Increased corrosion resistance of building materials is provided by optimal selection of nanobinders and fillers, by increased density and treatment of the structure surface with protective coatings.The manufacturing feasibilities for nanocomposites based on various raw materials, nanobinders (gypsum, cement, bitumen, polymer, etc.), and inclusion of various dispersed phases (nanofillers, natural and technogenic aggregates) expand the variety of building composite materials. The synergistic dynamism of the occurrence of geometrical regularity of nanostructures during the structure formation of binders correctly demonstrates the fractal concept. Fractal nanostructures of binders with a rough surface are formed according to mechanism of diffusion-limited aggregation.Keywords: binders, structure formation, the fractality of the microstructure, gypsum cements, the resistance of concrete.For citation: Sinitsin D.A., Khalikov R.M., Bulatov B.G., Galitskov K.S., Nedoseko I.V. Technological approaches to directed structure formation of construction nanocomposites with increased corrosion resistance. Nanotehnologii v stroitel'stve Machine-readable information on CC-licenses (HTML-code) in metadata of the paper

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