The possibility of using expanded perlite dust (RUNWAY) in cement binder systems is being considered. A method for modifying the binder by joint mechanical activation of Portland cement, alumosilicate waste and hyperplasticizer is presented. The physico-chemical features of the modified runway make it possible to regulate the processes of hydration, phase formation, as well as the formation of the structural matrix of the composite. The compressive strength of the binder using RUNWAY as an active mineral additive increases by 36% with a decrease in density.

Keywords: technogenic raw materials, perlite, binder, dispersion, modification, mechanical activation, hydration, structure formation, phase formation, resource conservation

Natural disasters can cause serious damage to cities and entire regions, which makes it important to improve the efficiency of planning repair and construction work when restoring built-up areas. The article discusses the organizational and managerial aspects of the restoration of territories affected by natural disasters, which is the basis for effective planning and implementation of projects for the reconstruction and restoration of settlements.

Keywords: natural disasters, emergency situation, urban area, advanced planning, infrastructure

The article deals with the stages, causes of origin and actual problems of high-rise construction in Rostov-on-Don. Examples of successful development of high-rise buildings in Russia and abroad are given. The problematic aspects are analyzed, possible ways of solving on the basis of the experience of other cities in the construction of unique buildings are shown.

Keywords: high-rise construction, town-planning, skyscraper, design, architecture, number of storeys, Rostov-on-Don, development, zoning, world practice, normative and legal documentation

  The current stage of development of the sphere of telecommunications services is accompanied by a side effect - electromagnetic pollution. Until recently, the effects of hygienically significant levels of electromagnetic radiation (EMR) were subjected to only a certain number of people associated with professional activities. At the present time due to the powerful development of the telecommunications market in Russia is necessary to speak about the impact of EMR on the entire population. It should be noted that the growth of telecommunications services in Russia are far ahead of all forecasts. In this regard, there is an urgent need for monitoring the electromagnetic environment in the locations of radio transmission of technical objects.

Keywords: electromagnetic ecology, electromagnetic pollution, zones limits building, sanitary protection zones