No abstract

The article considers the issue of integrated assessment of various geo-protective technologies that can be used in a cold region. For the first time, a parameter is introduced that takes into account the effect of negative temperature on the work of the tecnology being introduced as a whole. Materials for construction can also be assessed by the above algorithm. The calculation ends with a PQ index for each object.

In article questions of influence of wooden cross ties on a surrounding medium in the course of their operation on the railroad and after their replacement are considered in cold northern regions. The biggest negative impact on the environment comes from wooden sleepers impregnated with coal oil, oil pollution and heavy metal ions. Some ways of isolation of waste wooden cross ties by means of the geoeco-protective spreading materials are shown. Insulation technology has been proposed to minimize the environmental impact of spent wood sleepers for cold areas.

The article analyzes the use of ash foam concrete filler structures based on ash from sludge combustion for high-rise construction. Physical and chemical as well as physical and mechanical studies of samples of structures made of ash foam concrete were carried out. Ash foam concrete was produced with the use of ash from sludge combustion instead of natural sand after long-term operation of building structures. The improvement of the material in thermal protection is shown. Phase changes in the structures over time which is more than 12 years are traced.

The article deals with municipal waste-sewage sludge. This is the technology of the full cycle of sewage sludge utilization with the production of useful products is proposed. The technology includes the use of ash from the incineration of sewage sludge in the production of building cellular materials in the form of ash-concrete blocks and the use of blocks for construction.