One of the problems of modern construction material science is to provide durable composite materials based on affordable and low-cost local raw materials (natural resources, industrial wastes, etc.). The application of two-component nano-and microdispersed fillers is approved which were actively involved in structure formation of hardened cement paste, adhesive strength, as well as a closed system of microvoids. Their polyfunctional effect on structure properties of cellular and heavy concrete, mortars, etc. was identified. Reorganization of the pore space by introducing two-component fillers leads not only to the strength increase, water and cold resistance, but to the durability of cement composite materials.

Abstract. Growing volumes of construction result in the rising demand for highquality wall materials and products, growing relevance of availability of resource and raw-material base of natural and industrial products for the construction industry. Structural, physical and mechanical qualities of these products can be improved through systematical selection of compositions based on natural and raw materials, including nano-scale products. The goal of this paper is to provide rationale for structure formation mechanisms of multicomponent materials (silica-lime, silicate, cement materials), with the possibility of using nano-scale products in their production. The primary mechanism of directed structure formation at the interface boundaries of binders are nano-and ultra-disperse particles with high absorption and adhesion properties, which are primarily intended to strengthen the contact area (one of the key structural units of multicomponent binders). The knowledge of genesis, chemical, mineralogical, and phase compositions, as well as specific features of formation of nano-technological raw materials, enables optimization of construction product properties. Using the small-angle neutron scattering method, we identified granulometric and surface properties of a series of nano-technological products (binary and sludge) and materials where such products are used, which enabled us to design optimal mixture compositions and parameters of pressing operations.

Innovative materials and structures are analyzed in this paper. On the basis of provisions of the systems analysis the principles and approaches to modeling of processes of contact and condensation curing of silicate materials are developed. The mechanism of contact and condensation process on macro - and mesolevels of system is presented. There are provisions of synergetic at its base: formation of an infinite cluster of a framework of a raw from the power links connected by a contact condensation crossing point as a result of redistribution of an unstable phase calcium-silicate knitting between sources and drains of structure-forming elements. Theoretical modeling of intergrain condensation at the base of which there are submodels of the squeezed deposit and a capillary porous body is executed. The nanosized filler has a polyfunctional influence on the structure and properties of calcium-silicate and cement materials, takes part in the formation of new chemical compounds and the structure of pore walls.

Abstract.A large group of industrial wastes from water purification, treatment and softening has been considered. The reference is made to the fact that slurries are a unique man-made product technologically ready for use and constantly restocking. Slurries have been classified by conditions of the formation, composition, chemical and physical properties. The nanoscale structural parameters of the slurry particles (the size distribution and fractal dimension) have been determined by the neutron small-angle scattering method. The conducted researches allow slurries to be considered a nanotechnogenic raw material. The use of slurries as additives in the building material production process reduces the harmful influence of industrial wastes on the environment and creates a significant reserve of material and energy resources in the construction industry.

There is a sufficiently reliable correlation between the critical coefficient of stress intensity (the main criteiron for crack resistance of materials in linear mechanics for damage to solid bodies) and the other parameters of crack resistance, in particular, the microbrittleness and the microstrength, determined by the micropressure method and simpler methods K~c=--0,297+4,26 (R=0,968), KI~=1,57~+0,40 (R=0,912).Thus, the density of the hot-pressed alumina specimens critically affects their micromechanical properties. With increase in density, the microhardness increases, and the crack resistance tends to fall. A reduction in the crack resistance is clearly connected with the reduction in the number of pores in the microvolumes of the material, which in brittle damage conditions, within the local microvolumes, are "traps" for the growing cracks.