The paper deals with the issues of restoration of the wooden architecture monuments in Western Siberia by using the technology of wood modification. In order to modify the elements of the wooden buildings under restoration the authors studied hydrophobisators based on organic-silicone compounds. We have also defined the compositions and technologies of wood modification at the restoration of the wooden architecture monuments. Thermally modified wood may be used for restoration and replacement of the base courses of the wooden buildings.

The use of calcium polysulfide sealer, which can be obtained by dilution of sulphur in lime suspension heated to 95 оС, when producing concrete of high specific weight provides improvement of its strength while being compressed by 30-50%. In doing so, up to 50% portland cement in the composition of binding one can be replaced with metallurgic ferriferrous slag or ferriferous stubs.

Foam concrete solidifying in natural conditions significantly shrinks, which causes deterioration of the porous structure and thus the increase in the heat conductivity of the material. One of the solutions for this problem is application of mineral modifiers. As the mineral modifiers the authors used the production waste – mineral additives (wollastonite, diopside) at natural dispersive capacity, as well as milled down to 300 and 600 m2/kg of specific surface. The application of perlite microspheres in foam concrete was investigated. The thermal conductivity coefficient was defined by rapid method. The optimal composition of the mixture for manufacturing foam concrete products with mineral additives ensures the decrease in the heat conductivity coefficient by 41-43% compared to the reference composition. At complete replacement of fly-ash aggregate by perlite microspheres the thermal conductivity coefficient decreases down to 0.062 W/ (m×°С). The economic effect of application of the developed foam concrete with the additive of wollastonite and diopside compared with the foam concrete presented on the market is equal to 259 / 388 RUB/m2 of an erected structure at the density of D300/ D400 respectively. Thus, directed regulation of the porous structure of cellular concrete leads to significant improvement of stability of the foam concrete mixture, which makes the prerequisites to the decrease in the thermal conductivity of the material and positive technical and economical results.